23164871628 has 24 divisors (see below), whose sum is σ = 54476972032. Its totient is φ = 7660823184.

The previous prime is 23164871603. The next prime is 23164871647. The reversal of 23164871628 is 82617846132.

It is a super-2 number, since 2×23164871628² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7598500 + ... + 7601547.

Almost surely, 2^23164871628 is an apocalyptic number.

It is an amenable number.

23164871628 is an abundant number, since it is smaller than the sum of its proper divisors (31312100404).

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

23164871628 is a wasteful number, since it uses less digits than its factorization.

23164871628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15200181 (or 15200179 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The spelling of 23164871628 in words is "twenty-three billion, one hundred sixty-four million, eight hundred seventy-one thousand, six hundred twenty-eight".