78950518817102 has 16 divisors (see below), whose sum is σ = 124668875120400. Its totient is φ = 37394565816960.

The previous prime is 78950518817033. The next prime is 78950518817111. The reversal of 78950518817102 is 20171881505987.

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, 84204299 + ... + 85136742.

It is an arithmetic number, because the mean of its divisors is an integer number (7791804695025).

Almost surely, 2^{78950518817102} is an apocalyptic number.

78950518817102 is a deficient number, since it is larger than the sum of its proper divisors (45718356303298).

78950518817102 is a wasteful number, since it uses less digits than its factorization.

78950518817102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169353331.

The product of its (nonzero) digits is 11289600, while the sum is 62.

The spelling of 78950518817102 in words is "seventy-eight trillion, nine hundred fifty billion, five hundred eighteen million, eight hundred seventeen thousand, one hundred two".