23864648856 has 32 divisors (see below), whose sum is σ = 59873958000. Its totient is φ = 7926571520.

The previous prime is 23864648851. The next prime is 23864648903. The reversal of 23864648856 is 65884646832.

It is a self number, because there is not a number n which added to its sum of digits gives 23864648856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23864648851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1762581 + ... + 1776068.

Almost surely, 2^23864648856 is an apocalyptic number.

It is an amenable number.

23864648856 is an abundant number, since it is smaller than the sum of its proper divisors (36009309144).

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

23864648856 is a wasteful number, since it uses less digits than its factorization.

23864648856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538939 (or 3538935 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 60.

The spelling of 23864648856 in words is "twenty-three billion, eight hundred sixty-four million, six hundred forty-eight thousand, eight hundred fifty-six".