13436927997 has 16 divisors (see below), whose sum is σ = 18189070848. Its totient is φ = 8821658160.

The previous prime is 13436927981. The next prime is 13436928019. The reversal of 13436927997 is 79972963431.

It is not a de Polignac number, because 13436927997 - 2⁴ = 13436927981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13436927997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13436927597) 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, 152358 + ... + 223800.

It is an arithmetic number, because the mean of its divisors is an integer number (1136816928).

Almost surely, 2^13436927997 is an apocalyptic number.

It is an amenable number.

13436927997 is a deficient number, since it is larger than the sum of its proper divisors (4752142851).

13436927997 is an equidigital number, since it uses as much as digits as its factorization.

13436927997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72400.

The product of its digits is 15431472, while the sum is 60.

The spelling of 13436927997 in words is "thirteen billion, four hundred thirty-six million, nine hundred twenty-seven thousand, nine hundred ninety-seven".