78749507922 has 8 divisors (see below), whose sum is σ = 157499015856. Its totient is φ = 26249835972.

The previous prime is 78749507899. The next prime is 78749507951. The reversal of 78749507922 is 22970594787.

It is a sphenic number, since it is the product of 3 distinct primes.

78749507922 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6562458988 + ... + 6562458999.

It is an arithmetic number, because the mean of its divisors is an integer number (19687376982).

Almost surely, 2^78749507922 is an apocalyptic number.

78749507922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78749507922 is a wasteful number, since it uses less digits than its factorization.

78749507922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13124917992.

The product of its (nonzero) digits is 17781120, while the sum is 60.

The spelling of 78749507922 in words is "seventy-eight billion, seven hundred forty-nine million, five hundred seven thousand, nine hundred twenty-two".