12913837397 has 4 divisors (see below), whose sum is σ = 12985981920. Its totient is φ = 12841692876.

The previous prime is 12913837379. The next prime is 12913837427. The reversal of 12913837397 is 79373831921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12913837397 - 2⁶ = 12913837333 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 (12913837327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36071993 + ... + 36072350.

It is an arithmetic number, because the mean of its divisors is an integer number (3246495480).

Almost surely, 2^12913837397 is an apocalyptic number.

It is an amenable number.

12913837397 is a deficient number, since it is larger than the sum of its proper divisors (72144523).

12913837397 is an equidigital number, since it uses as much as digits as its factorization.

12913837397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72144522.

The product of its digits is 1714608, while the sum is 53.

The spelling of 12913837397 in words is "twelve billion, nine hundred thirteen million, eight hundred thirty-seven thousand, three hundred ninety-seven".