23772665388 has 48 divisors (see below), whose sum is σ = 56523600000. Its totient is φ = 7774186368.

The previous prime is 23772665359. The next prime is 23772665437. The reversal of 23772665388 is 88356627732.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319648 + ... + 386936.

It is an arithmetic number, because the mean of its divisors is an integer number (1177575000).

Almost surely, 2^23772665388 is an apocalyptic number.

It is an amenable number.

23772665388 is an abundant number, since it is smaller than the sum of its proper divisors (32750934612).

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

23772665388 is a wasteful number, since it uses less digits than its factorization.

23772665388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67854 (or 67852 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 57.

The spelling of 23772665388 in words is "twenty-three billion, seven hundred seventy-two million, six hundred sixty-five thousand, three hundred eighty-eight".