78715080080 has 80 divisors (see below), whose sum is σ = 225246249984. Its totient is φ = 24912023040.

The previous prime is 78715080053. The next prime is 78715080091. The reversal of 78715080080 is 8008051787.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5398976 + ... + 5413535.

Almost surely, 2^78715080080 is an apocalyptic number.

78715080080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

78715080080 is an abundant number, since it is smaller than the sum of its proper divisors (146531169904).

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

78715080080 is a wasteful number, since it uses less digits than its factorization.

78715080080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812544 (or 10812538 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 44.

The spelling of 78715080080 in words is "seventy-eight billion, seven hundred fifteen million, eighty thousand, eighty".