79345138446 has 48 divisors (see below), whose sum is σ = 198499208544. Its totient is φ = 22436324352.

The previous prime is 79345138441. The next prime is 79345138447. The reversal of 79345138446 is 64483154397.

79345138446 is a `hidden beast` number, since 7 + 9 + 3 + 4 + 513 + 84 + 46 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 79345138392 and 79345138401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79345138441) 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, 3233775 + ... + 3258218.

It is an arithmetic number, because the mean of its divisors is an integer number (4135400178).

Almost surely, 2^79345138446 is an apocalyptic number.

79345138446 is an abundant number, since it is smaller than the sum of its proper divisors (119154070098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79345138446 is a wasteful number, since it uses less digits than its factorization.

79345138446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492105 (or 6492102 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 79345138446 in words is "seventy-nine billion, three hundred forty-five million, one hundred thirty-eight thousand, four hundred forty-six".