79706645674 has 8 divisors (see below), whose sum is σ = 119569983588. Its totient is φ = 39849984480.

The previous prime is 79706645663. The next prime is 79706645737. The reversal of 79706645674 is 47654660797.

It can be written as a sum of positive squares in 2 ways, for example, as 56118293449 + 23588352225 = 236893^2 + 153585^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639227 + ... + 1687150.

Almost surely, 2^79706645674 is an apocalyptic number.

79706645674 is a deficient number, since it is larger than the sum of its proper divisors (39863337914).

79706645674 is a wasteful number, since it uses less digits than its factorization.

79706645674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338360.

The product of its (nonzero) digits is 53343360, while the sum is 61.

The spelling of 79706645674 in words is "seventy-nine billion, seven hundred six million, six hundred forty-five thousand, six hundred seventy-four".