23705684964 has 48 divisors (see below), whose sum is σ = 66186816640. Its totient is φ = 7294056480.

The previous prime is 23705684963. The next prime is 23705685049. The reversal of 23705684964 is 46948650732.

23705684964 is a `hidden beast` number, since 2 + 3 + 70 + 568 + 4 + 9 + 6 + 4 = 666.

It is a super-2 number, since 2×23705684964² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 23705684964.

It is not an unprimeable number, because it can be changed into a prime (23705684963) 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, 8440792 + ... + 8443599.

Almost surely, 2^23705684964 is an apocalyptic number.

It is an amenable number.

23705684964 is an abundant number, since it is smaller than the sum of its proper divisors (42481131676).

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

23705684964 is a wasteful number, since it uses less digits than its factorization.

23705684964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16884417 (or 16884409 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 23705684964 in words is "twenty-three billion, seven hundred five million, six hundred eighty-four thousand, nine hundred sixty-four".