79409794752 has 84 divisors (see below), whose sum is σ = 227672926416. Its totient is φ = 26463060480.

The previous prime is 79409794741. The next prime is 79409794757. The reversal of 79409794752 is 25749790497.

79409794752 is a `hidden beast` number, since 7 + 94 + 0 + 9 + 79 + 475 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 79409794752.

It is not an unprimeable number, because it can be changed into a prime (79409794757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2513518 + ... + 2544914.

Almost surely, 2^79409794752 is an apocalyptic number.

79409794752 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

79409794752 is an abundant number, since it is smaller than the sum of its proper divisors (148263131664).

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

79409794752 is a wasteful number, since it uses less digits than its factorization.

79409794752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35806 (or 35793 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 63.

The spelling of 79409794752 in words is "seventy-nine billion, four hundred nine million, seven hundred ninety-four thousand, seven hundred fifty-two".