79377077397 has 4 divisors (see below), whose sum is σ = 105836103200. Its totient is φ = 52918051596.

The previous prime is 79377077383. The next prime is 79377077441.

79377077397 is nontrivially palindromic in base 10.

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 not a de Polignac number, because 79377077397 - 2¹² = 79377073301 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 (79377078397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13229512897 + ... + 13229512902.

It is an arithmetic number, because the mean of its divisors is an integer number (26459025800).

Almost surely, 2^79377077397 is an apocalyptic number.

It is an amenable number.

79377077397 is a deficient number, since it is larger than the sum of its proper divisors (26459025803).

79377077397 is a wasteful number, since it uses less digits than its factorization.

79377077397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26459025802.

The product of its (nonzero) digits is 85766121, while the sum is 66.

The spelling of 79377077397 in words is "seventy-nine billion, three hundred seventy-seven million, seventy-seven thousand, three hundred ninety-seven".