79391795475 has 24 divisors (see below), whose sum is σ = 134313691072. Its totient is φ = 41357584800.

The previous prime is 79391795473. The next prime is 79391795501. The reversal of 79391795475 is 57459719397.

It is not a de Polignac number, because 79391795475 - 2¹ = 79391795473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79391795471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12305581 + ... + 12312030.

Almost surely, 2^79391795475 is an apocalyptic number.

79391795475 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

79391795475 is a deficient number, since it is larger than the sum of its proper divisors (54921895597).

79391795475 is a wasteful number, since it uses less digits than its factorization.

79391795475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24617667 (or 24617662 counting only the distinct ones).

The product of its digits is 75014100, while the sum is 66.

The spelling of 79391795475 in words is "seventy-nine billion, three hundred ninety-one million, seven hundred ninety-five thousand, four hundred seventy-five".