12172430952 has 64 divisors (see below), whose sum is σ = 36886161600. Its totient is φ = 3688614720.

The previous prime is 12172430939. The next prime is 12172430983. The reversal of 12172430952 is 25903427121.

12172430952 is a `hidden beast` number, since 1 + 2 + 172 + 430 + 9 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 2559163 + ... + 2563914.

It is an arithmetic number, because the mean of its divisors is an integer number (576346275).

Almost surely, 2^12172430952 is an apocalyptic number.

12172430952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12172430952 is an abundant number, since it is smaller than the sum of its proper divisors (24713730648).

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

12172430952 is a wasteful number, since it uses less digits than its factorization.

12172430952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123103 (or 5123093 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 12172430952 in words is "twelve billion, one hundred seventy-two million, four hundred thirty thousand, nine hundred fifty-two".