23149467172 has 12 divisors (see below), whose sum is σ = 43627842076. Its totient is φ = 10684369440.

The previous prime is 23149467151. The next prime is 23149467193. The reversal of 23149467172 is 27176494132.

It is an interprime number because it is at equal distance from previous prime (23149467151) and next prime (23149467193).

It can be written as a sum of positive squares in 2 ways, for example, as 3646227456 + 19503239716 = 60384^2 + 139654^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222590979 + ... + 222591082.

Almost surely, 2^23149467172 is an apocalyptic number.

It is an amenable number.

23149467172 is a deficient number, since it is larger than the sum of its proper divisors (20478374904).

23149467172 is a wasteful number, since it uses less digits than its factorization.

23149467172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445182078 (or 445182076 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The spelling of 23149467172 in words is "twenty-three billion, one hundred forty-nine million, four hundred sixty-seven thousand, one hundred seventy-two".