13157727379 has 4 divisors (see below), whose sum is σ = 13159902184. Its totient is φ = 13155552576.

The previous prime is 13157727343. The next prime is 13157727383. The reversal of 13157727379 is 97372775131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13157727379 - 2¹³ = 13157719187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13157427379) 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, 1078302 + ... + 1090435.

It is an arithmetic number, because the mean of its divisors is an integer number (3289975546).

Almost surely, 2^13157727379 is an apocalyptic number.

13157727379 is a deficient number, since it is larger than the sum of its proper divisors (2174805).

13157727379 is an equidigital number, since it uses as much as digits as its factorization.

13157727379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174804.

The product of its digits is 1944810, while the sum is 52.

The spelling of 13157727379 in words is "thirteen billion, one hundred fifty-seven million, seven hundred twenty-seven thousand, three hundred seventy-nine".