12570021872 has 40 divisors (see below), whose sum is σ = 24833589120. Its totient is φ = 6161542400.

The previous prime is 12570021829. The next prime is 12570021917. The reversal of 12570021872 is 27812007521.

It is a congruent number.

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, 1215122 + ... + 1225422.

It is an arithmetic number, because the mean of its divisors is an integer number (620839728).

Almost surely, 2^12570021872 is an apocalyptic number.

It is an amenable number.

12570021872 is a deficient number, since it is larger than the sum of its proper divisors (12263567248).

12570021872 is a wasteful number, since it uses less digits than its factorization.

12570021872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801 (or 11795 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The spelling of 12570021872 in words is "twelve billion, five hundred seventy million, twenty-one thousand, eight hundred seventy-two".