12356551379 has 4 divisors (see below), whose sum is σ = 12505425576. Its totient is φ = 12207677184.

The previous prime is 12356551343. The next prime is 12356551381. The reversal of 12356551379 is 97315565321.

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

It is not a de Polignac number, because 12356551379 - 2²⁴ = 12339774163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12356551399) 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, 74436974 + ... + 74437139.

It is an arithmetic number, because the mean of its divisors is an integer number (3126356394).

Almost surely, 2^12356551379 is an apocalyptic number.

12356551379 is a deficient number, since it is larger than the sum of its proper divisors (148874197).

12356551379 is an equidigital number, since it uses as much as digits as its factorization.

12356551379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148874196.

The product of its digits is 850500, while the sum is 47.

The spelling of 12356551379 in words is "twelve billion, three hundred fifty-six million, five hundred fifty-one thousand, three hundred seventy-nine".