23533374672 has 30 divisors (see below), whose sum is σ = 65860764242. Its totient is φ = 7844458176.

The previous prime is 23533374593. The next prime is 23533374679. The reversal of 23533374672 is 27647333532.

It is a happy number.

23533374672 is a `hidden beast` number, since 2 + 3 + 533 + 3 + 7 + 46 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15461430336 + 8071944336 = 124344^2 + 89844^2 .

It is a super-2 number, since 2×23533374672² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23533374679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 81712963 + ... + 81713250.

Almost surely, 2^23533374672 is an apocalyptic number.

It is an amenable number.

23533374672 is an abundant number, since it is smaller than the sum of its proper divisors (42327389570).

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

23533374672 is a wasteful number, since it uses less digits than its factorization.

23533374672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163426227 (or 163426218 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 45.

The spelling of 23533374672 in words is "twenty-three billion, five hundred thirty-three million, three hundred seventy-four thousand, six hundred seventy-two".