79788366502 has 16 divisors (see below), whose sum is σ = 128915618832. Its totient is φ = 36817765920.

The previous prime is 79788366467. The next prime is 79788366521. The reversal of 79788366502 is 20566388797.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189268 + ... + 442039.

It is an arithmetic number, because the mean of its divisors is an integer number (8057226177).

Almost surely, 2^79788366502 is an apocalyptic number.

79788366502 is a deficient number, since it is larger than the sum of its proper divisors (49127252330).

79788366502 is a wasteful number, since it uses less digits than its factorization.

79788366502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636183.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 79788366502 in words is "seventy-nine billion, seven hundred eighty-eight million, three hundred sixty-six thousand, five hundred two".