13172111885 has 8 divisors (see below), whose sum is σ = 16316422656. Its totient is φ = 10197763920.

The previous prime is 13172111863. The next prime is 13172111933. The reversal of 13172111885 is 58811127131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13172111885 - 2²⁰ = 13171063309 is a prime.

It is a Duffinian number.

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, 42490529 + ... + 42490838.

It is an arithmetic number, because the mean of its divisors is an integer number (2039552832).

Almost surely, 2^13172111885 is an apocalyptic number.

It is an amenable number.

13172111885 is a deficient number, since it is larger than the sum of its proper divisors (3144310771).

13172111885 is an equidigital number, since it uses as much as digits as its factorization.

13172111885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84981403.

The product of its digits is 13440, while the sum is 38.

The spelling of 13172111885 in words is "thirteen billion, one hundred seventy-two million, one hundred eleven thousand, eight hundred eighty-five".