79485872913 has 20 divisors (see below), whose sum is σ = 118946903460. Its totient is φ = 52897421952.

The previous prime is 79485872909. The next prime is 79485872951. The reversal of 79485872913 is 31927858497.

79485872913 is a `hidden beast` number, since 7 + 9 + 48 + 587 + 2 + 9 + 1 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5918532624 + 73567340289 = 76932^2 + 271233^2 .

It is not a de Polignac number, because 79485872913 - 2² = 79485872909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79485872113) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 816220 + ... + 908397.

It is an arithmetic number, because the mean of its divisors is an integer number (5947345173).

Almost surely, 2^79485872913 is an apocalyptic number.

It is an amenable number.

79485872913 is a deficient number, since it is larger than the sum of its proper divisors (39461030547).

79485872913 is a wasteful number, since it uses less digits than its factorization.

79485872913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725198 (or 1725189 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 79485872913 in words is "seventy-nine billion, four hundred eighty-five million, eight hundred seventy-two thousand, nine hundred thirteen".