12531895472 has 40 divisors (see below), whose sum is σ = 25060747200. Its totient is φ = 6067778112.

The previous prime is 12531895427. The next prime is 12531895553. The reversal of 12531895472 is 27459813521.

It is a super-2 number, since 2×12531895472² (a number of 21 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, 35822 + ... + 162317.

It is an arithmetic number, because the mean of its divisors is an integer number (626518680).

Almost surely, 2^12531895472 is an apocalyptic number.

It is an amenable number.

12531895472 is a deficient number, since it is larger than the sum of its proper divisors (12528851728).

12531895472 is a wasteful number, since it uses less digits than its factorization.

12531895472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198273 (or 198267 counting only the distinct ones).

The product of its digits is 604800, while the sum is 47.

The spelling of 12531895472 in words is "twelve billion, five hundred thirty-one million, eight hundred ninety-five thousand, four hundred seventy-two".