79747066458 has 16 divisors (see below), whose sum is σ = 177215703360. Its totient is φ = 26582355468.

The previous prime is 79747066417. The next prime is 79747066459. The reversal of 79747066458 is 85466074797.

It is a junction number, because it is equal to n+sod(n) for n = 79747066395 and 79747066404.

It is not an unprimeable number, because it can be changed into a prime (79747066459) 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 7 ways as a sum of consecutive naturals, for example, 738398710 + ... + 738398817.

It is an arithmetic number, because the mean of its divisors is an integer number (11075981460).

Almost surely, 2^79747066458 is an apocalyptic number.

79747066458 is an abundant number, since it is smaller than the sum of its proper divisors (97468636902).

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

79747066458 is a wasteful number, since it uses less digits than its factorization.

79747066458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476797538 (or 1476797532 counting only the distinct ones).

The product of its (nonzero) digits is 71124480, while the sum is 63.

The spelling of 79747066458 in words is "seventy-nine billion, seven hundred forty-seven million, sixty-six thousand, four hundred fifty-eight".