13397897715 has 16 divisors (see below), whose sum is σ = 21438705408. Its totient is φ = 7144855776.

The previous prime is 13397897699. The next prime is 13397897759. The reversal of 13397897715 is 51779879331.

It is not a de Polignac number, because 13397897715 - 2⁴ = 13397897699 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143562 + ... + 217728.

It is an arithmetic number, because the mean of its divisors is an integer number (1339919088).

Almost surely, 2^13397897715 is an apocalyptic number.

13397897715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13397897715 is a deficient number, since it is larger than the sum of its proper divisors (8040807693).

13397897715 is a wasteful number, since it uses less digits than its factorization.

13397897715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86218.

The product of its digits is 10001880, while the sum is 60.

The spelling of 13397897715 in words is "thirteen billion, three hundred ninety-seven million, eight hundred ninety-seven thousand, seven hundred fifteen".