23451472764 has 18 divisors (see below), whose sum is σ = 59280111800. Its totient is φ = 7817157576.

The previous prime is 23451472757. The next prime is 23451472769. The reversal of 23451472764 is 46727415432.

23451472764 is a `hidden beast` number, since 2 + 3 + 4 + 514 + 72 + 7 + 64 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451472769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325714864 + ... + 325714935.

Almost surely, 2^23451472764 is an apocalyptic number.

It is an amenable number.

23451472764 is an abundant number, since it is smaller than the sum of its proper divisors (35828639036).

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

23451472764 is a wasteful number, since it uses less digits than its factorization.

23451472764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651429809 (or 651429804 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 23451472764 in words is "twenty-three billion, four hundred fifty-one million, four hundred seventy-two thousand, seven hundred sixty-four".