23772665512 has 8 divisors (see below), whose sum is σ = 44573747850. Its totient is φ = 11886332752.

The previous prime is 23772665503. The next prime is 23772665533. The reversal of 23772665512 is 21556627732.

It can be written as a sum of positive squares in only one way, i.e., 23591116836 + 181548676 = 153594^2 + 13474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1485791587 + ... + 1485791602.

Almost surely, 2^23772665512 is an apocalyptic number.

It is an amenable number.

23772665512 is a deficient number, since it is larger than the sum of its proper divisors (20801082338).

23772665512 is a wasteful number, since it uses less digits than its factorization.

23772665512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2971583195 (or 2971583191 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 46.

The spelling of 23772665512 in words is "twenty-three billion, seven hundred seventy-two million, six hundred sixty-five thousand, five hundred twelve".