12513791379 has 4 divisors (see below), whose sum is σ = 16685055176. Its totient is φ = 8342527584.

The previous prime is 12513791377. The next prime is 12513791387. The reversal of 12513791379 is 97319731521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12513791379 - 2¹ = 12513791377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12513791377) 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, 2085631894 + ... + 2085631899.

It is an arithmetic number, because the mean of its divisors is an integer number (4171263794).

Almost surely, 2^12513791379 is an apocalyptic number.

12513791379 is a deficient number, since it is larger than the sum of its proper divisors (4171263797).

12513791379 is an equidigital number, since it uses as much as digits as its factorization.

12513791379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4171263796.

The product of its digits is 357210, while the sum is 48.

The spelling of 12513791379 in words is "twelve billion, five hundred thirteen million, seven hundred ninety-one thousand, three hundred seventy-nine".