13217870272 has 28 divisors (see below), whose sum is σ = 27075318976. Its totient is φ = 6395742720.

The previous prime is 13217870261. The next prime is 13217870291. The reversal of 13217870272 is 27207871231.

It is a congruent number.

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, 3329133 + ... + 3333100.

Almost surely, 2^13217870272 is an apocalyptic number.

It is an amenable number.

13217870272 is an abundant number, since it is smaller than the sum of its proper divisors (13857448704).

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

13217870272 is an equidigital number, since it uses as much as digits as its factorization.

13217870272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662276 (or 6662266 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 40.

The spelling of 13217870272 in words is "thirteen billion, two hundred seventeen million, eight hundred seventy thousand, two hundred seventy-two".