1325872812172 has 12 divisors (see below), whose sum is σ = 2442397285720. Its totient is φ = 628045016256.

The previous prime is 1325872812149. The next prime is 1325872812203. The reversal of 1325872812172 is 2712182785231.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8722847373 + ... + 8722847524.

Almost surely, 2^{1325872812172} is an apocalyptic number.

It is an amenable number.

1325872812172 is a deficient number, since it is larger than the sum of its proper divisors (1116524473548).

1325872812172 is a wasteful number, since it uses less digits than its factorization.

1325872812172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17445694920 (or 17445694918 counting only the distinct ones).

The product of its digits is 752640, while the sum is 49.

The spelling of 1325872812172 in words is "one trillion, three hundred twenty-five billion, eight hundred seventy-two million, eight hundred twelve thousand, one hundred seventy-two".