78616718380 has 48 divisors (see below), whose sum is σ = 174186038880. Its totient is φ = 29722733568.

The previous prime is 78616718371. The next prime is 78616718407. The reversal of 78616718380 is 8381761687.

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, 74359 + ... + 403438.

It is an arithmetic number, because the mean of its divisors is an integer number (3628875810).

Almost surely, 2^78616718380 is an apocalyptic number.

It is an amenable number.

78616718380 is an abundant number, since it is smaller than the sum of its proper divisors (95569320500).

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

78616718380 is a wasteful number, since it uses less digits than its factorization.

78616718380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478258 (or 478256 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 78616718380 in words is "seventy-eight billion, six hundred sixteen million, seven hundred eighteen thousand, three hundred eighty".