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74907578412368 = 24131756599374287
BaseRepresentation
bin10001000010000011000111…
…100110100010110101010000
3100211020002112221012210100122
4101002003013212202311100
534304241210033143433
6423152022204405412
721530615423614322
oct2102030746426520
9324202487183318
1074907578412368
11219601421a49a9
128499710546868
1332a49a63720c0
14146d790871612
1589d7b849d198
hex4420c79a2d50

74907578412368 has 80 divisors (see below), whose sum is σ = 165494882649600. Its totient is φ = 32538376747008.

The previous prime is 74907578412361. The next prime is 74907578412427. The reversal of 74907578412368 is 86321487570947.

74907578412368 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×749075784123683 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74907578412361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199946921 + ... + 200321207.

It is an arithmetic number, because the mean of its divisors is an integer number (2068686033120).

It is a 1-persistent number, because it is pandigital, but 2⋅74907578412368 = 149815156824736 is not.

Almost surely, 274907578412368 is an apocalyptic number.

It is an amenable number.

74907578412368 is an abundant number, since it is smaller than the sum of its proper divisors (90587304237232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74907578412368 is a wasteful number, since it uses less digits than its factorization.

74907578412368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430924 (or 430918 counting only the distinct ones).

The product of its (nonzero) digits is 568995840, while the sum is 71.

The spelling of 74907578412368 in words is "seventy-four trillion, nine hundred seven billion, five hundred seventy-eight million, four hundred twelve thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 13 16 17 26 34 52 68 104 136 208 221 272 442 884 1768 3536 56599 113198 226396 374287 452792 735787 748574 905584 962183 1471574 1497148 1924366 2943148 2994296 3848732 4865731 5886296 5988592 6362879 7697464 9731462 11772592 12508379 12725758 15394928 19462924 25016758 25451516 38925848 50033516 50903032 77851696 82717427 100067032 101806064 165434854 200134064 330869708 661739416 1323478832 21184269913 42368539826 84737079652 169474159304 275395508869 338948318608 360132588521 550791017738 720265177042 1101582035476 1440530354084 2203164070952 2881060708168 4406328141904 4681723650773 5762121416336 9363447301546 18726894603092 37453789206184 74907578412368