23621763981996 has 72 divisors (see below), whose sum is σ = 61665010534400. Its totient is φ = 7616426099040.

The previous prime is 23621763981973. The next prime is 23621763982049. The reversal of 23621763981996 is 69918936712632.

23621763981996 is a `hidden beast` number, since 2 + 3 + 6 + 217 + 6 + 398 + 19 + 9 + 6 = 666.

It is a super-2 number, since 2×23621763981996² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2425156 + ... + 7288683.

Almost surely, 2^{23621763981996} is an apocalyptic number.

It is an amenable number.

23621763981996 is an abundant number, since it is smaller than the sum of its proper divisors (38043246552404).

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

23621763981996 is a wasteful number, since it uses less digits than its factorization.

23621763981996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9716059 (or 9716054 counting only the distinct ones).

The product of its digits is 317447424, while the sum is 72.

The spelling of 23621763981996 in words is "twenty-three trillion, six hundred twenty-one billion, seven hundred sixty-three million, nine hundred eighty-one thousand, nine hundred ninety-six".