23405692856 has 48 divisors (see below), whose sum is σ = 54309934800. Its totient is φ = 9259391232.

The previous prime is 23405692829. The next prime is 23405692867. The reversal of 23405692856 is 65829650432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1227101 + ... + 1246028.

It is an arithmetic number, because the mean of its divisors is an integer number (1131456975).

Almost surely, 2^23405692856 is an apocalyptic number.

23405692856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23405692856 is an abundant number, since it is smaller than the sum of its proper divisors (30904241944).

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

23405692856 is a wasteful number, since it uses less digits than its factorization.

23405692856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473168 (or 2473151 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 50.

The spelling of 23405692856 in words is "twenty-three billion, four hundred five million, six hundred ninety-two thousand, eight hundred fifty-six".