23956765456 has 40 divisors (see below), whose sum is σ = 50004827264. Its totient is φ = 11052961920.

The previous prime is 23956765403. The next prime is 23956765457. The reversal of 23956765456 is 65456765932.

It is a super-2 number, since 2×23956765456² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23956765456.

It is not an unprimeable number, because it can be changed into a prime (23956765457) 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, 598585 + ... + 637351.

Almost surely, 2^23956765456 is an apocalyptic number.

23956765456 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23956765456 is an abundant number, since it is smaller than the sum of its proper divisors (26048061808).

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

23956765456 is a wasteful number, since it uses less digits than its factorization.

23956765456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41759 (or 41753 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 58.

The spelling of 23956765456 in words is "twenty-three billion, nine hundred fifty-six million, seven hundred sixty-five thousand, four hundred fifty-six".