13171478837 has 16 divisors (see below), whose sum is σ = 14508029184. Its totient is φ = 11957220000.

The previous prime is 13171478809. The next prime is 13171478849. The reversal of 13171478837 is 73887417131.

It is not a de Polignac number, because 13171478837 - 2⁸ = 13171478581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13171478237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 992993 + ... + 1006169.

It is an arithmetic number, because the mean of its divisors is an integer number (906751824).

Almost surely, 2^13171478837 is an apocalyptic number.

It is an amenable number.

13171478837 is a deficient number, since it is larger than the sum of its proper divisors (1336550347).

13171478837 is an equidigital number, since it uses as much as digits as its factorization.

13171478837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13961 (or 13939 counting only the distinct ones).

The product of its digits is 790272, while the sum is 50.

The spelling of 13171478837 in words is "thirteen billion, one hundred seventy-one million, four hundred seventy-eight thousand, eight hundred thirty-seven".