23936819956 has 12 divisors (see below), whose sum is σ = 47873639968. Its totient is φ = 10258637112.

The previous prime is 23936819953. The next prime is 23936819971. The reversal of 23936819956 is 65991863932.

23936819956 is an admirable number.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23936819894 and 23936819903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23936819953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427443186 + ... + 427443241.

Almost surely, 2^23936819956 is an apocalyptic number.

It is an amenable number.

23936819956 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23936819956 is a wasteful number, since it uses less digits than its factorization.

23936819956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854886438 (or 854886436 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 61.

The spelling of 23936819956 in words is "twenty-three billion, nine hundred thirty-six million, eight hundred nineteen thousand, nine hundred fifty-six".