79477137951 has 16 divisors (see below), whose sum is σ = 110706602496. Its totient is φ = 50621620896.

The previous prime is 79477137947. The next prime is 79477137977. The reversal of 79477137951 is 15973177497.

It is not a de Polignac number, because 79477137951 - 2² = 79477137947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79477137931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 616315 + ... + 734028.

It is an arithmetic number, because the mean of its divisors is an integer number (6919162656).

Almost surely, 2^79477137951 is an apocalyptic number.

79477137951 is a deficient number, since it is larger than the sum of its proper divisors (31229464545).

79477137951 is a wasteful number, since it uses less digits than its factorization.

79477137951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351222.

The product of its digits is 11668860, while the sum is 60.

The spelling of 79477137951 in words is "seventy-nine billion, four hundred seventy-seven million, one hundred thirty-seven thousand, nine hundred fifty-one".