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4678981011831 = 37653341207687
BaseRepresentation
bin100010000010110100100…
…0000000100100101110111
3121120022021020020212102210
41010011221000010211313
51103130023114334311
613541254425304503
7662021340245550
oct104055100044567
917508236225383
104678981011831
111544387889365
12636999335133
1327c2c2732b69
1412266ccab327
1581a9eb143a6
hex44169004977

4678981011831 has 16 divisors (see below), whose sum is σ = 7140794494464. Its totient is φ = 2669608935264.

The previous prime is 4678981011791. The next prime is 4678981011857. The reversal of 4678981011831 is 1381101898764.

It is not a de Polignac number, because 4678981011831 - 29 = 4678981011319 is a prime.

It is a super-2 number, since 2×46789810118312 (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4678981021831) 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, 170590131 + ... + 170617556.

It is an arithmetic number, because the mean of its divisors is an integer number (446299655904).

Almost surely, 24678981011831 is an apocalyptic number.

4678981011831 is a deficient number, since it is larger than the sum of its proper divisors (2461813482633).

4678981011831 is a wasteful number, since it uses less digits than its factorization.

4678981011831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341208350.

The product of its (nonzero) digits is 2322432, while the sum is 57.

The spelling of 4678981011831 in words is "four trillion, six hundred seventy-eight billion, nine hundred eighty-one million, eleven thousand, eight hundred thirty-one".

Divisors: 1 3 7 21 653 1959 4571 13713 341207687 1023623061 2388453809 7165361427 222808619611 668425858833 1559660337277 4678981011831