78322672670 has 128 divisors (see below), whose sum is σ = 165255552000. Its totient is φ = 26427202560.

The previous prime is 78322672669. The next prime is 78322672733. The reversal of 78322672670 is 7627622387.

It is a super-2 number, since 2×78322672670² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20273159 + ... + 20277021.

It is an arithmetic number, because the mean of its divisors is an integer number (1291059000).

Almost surely, 2^78322672670 is an apocalyptic number.

78322672670 is an abundant number, since it is smaller than the sum of its proper divisors (86932879330).

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

78322672670 is a wasteful number, since it uses less digits than its factorization.

78322672670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4098.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 78322672670 in words is "seventy-eight billion, three hundred twenty-two million, six hundred seventy-two thousand, six hundred seventy".