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74911640953 = 836611365431
BaseRepresentation
bin100010111000100010…
…1001110110101111001
321011100201110122121111
41011301011032311321
52211404340002303
654225224240321
75261244304402
oct1056105166571
9234321418544
1074911640953
1129851739676
12126279100a1
1370aabaa186
1438a90769a9
151e36911b6d
hex117114ed79

74911640953 has 8 divisors (see below), whose sum is σ = 75928942656. Its totient is φ = 73897071600.

The previous prime is 74911640933. The next prime is 74911641011. The reversal of 74911640953 is 35904611947.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74911640953 is a prime.

It is a super-2 number, since 2×749116409532 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74911640897 and 74911640906.

It is not an unprimeable number, because it can be changed into a prime (74911640933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 627853 + ... + 737578.

It is an arithmetic number, because the mean of its divisors is an integer number (9491117832).

Almost surely, 274911640953 is an apocalyptic number.

It is an amenable number.

74911640953 is a deficient number, since it is larger than the sum of its proper divisors (1017301703).

74911640953 is a wasteful number, since it uses less digits than its factorization.

74911640953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366175.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 74911640953 in words is "seventy-four billion, nine hundred eleven million, six hundred forty thousand, nine hundred fifty-three".

Divisors: 1 83 661 54863 1365431 113330773 902549891 74911640953