13171289999 has 8 divisors (see below), whose sum is σ = 15053604768. Its totient is φ = 11289150720.

The previous prime is 13171289993. The next prime is 13171290043. The reversal of 13171289999 is 99998217131.

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

It is a cyclic number.

It is not a de Polignac number, because 13171289999 - 2⁴ = 13171289983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13171289993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236039 + ... + 286455.

It is an arithmetic number, because the mean of its divisors is an integer number (1881700596).

Almost surely, 2^13171289999 is an apocalyptic number.

13171289999 is a deficient number, since it is larger than the sum of its proper divisors (1882314769).

13171289999 is an equidigital number, since it uses as much as digits as its factorization.

13171289999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87745.

The product of its digits is 2204496, while the sum is 59.

The spelling of 13171289999 in words is "thirteen billion, one hundred seventy-one million, two hundred eighty-nine thousand, nine hundred ninety-nine".