79057953577 has 4 divisors (see below), whose sum is σ = 81608210176. Its totient is φ = 76507696980.

The previous prime is 79057953551. The next prime is 79057953587. The reversal of 79057953577 is 77535975097.

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 79057953577 - 2⁷ = 79057953449 is a prime.

It is a super-3 number, since 3×79057953577³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79057953547) 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, 1275128253 + ... + 1275128314.

It is an arithmetic number, because the mean of its divisors is an integer number (20402052544).

Almost surely, 2^79057953577 is an apocalyptic number.

It is an amenable number.

79057953577 is a deficient number, since it is larger than the sum of its proper divisors (2550256599).

79057953577 is a wasteful number, since it uses less digits than its factorization.

79057953577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2550256598.

The product of its (nonzero) digits is 72930375, while the sum is 64.

The spelling of 79057953577 in words is "seventy-nine billion, fifty-seven million, nine hundred fifty-three thousand, five hundred seventy-seven".