78316910922 has 16 divisors (see below), whose sum is σ = 156672139680. Its totient is φ = 26099250672.

The previous prime is 78316910843. The next prime is 78316910923. The reversal of 78316910922 is 22901961387.

It is a super-2 number, since 2×78316910922² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78316910923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569972 + ... + 1619087.

It is an arithmetic number, because the mean of its divisors is an integer number (9792008730).

Almost surely, 2^78316910922 is an apocalyptic number.

78316910922 is an abundant number, since it is smaller than the sum of its proper divisors (78355228758).

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

78316910922 is a wasteful number, since it uses less digits than its factorization.

78316910922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3193157.

The product of its (nonzero) digits is 326592, while the sum is 48.

The spelling of 78316910922 in words is "seventy-eight billion, three hundred sixteen million, nine hundred ten thousand, nine hundred twenty-two".