78858518020316 has 24 divisors (see below), whose sum is σ = 138609134664000. Its totient is φ = 39255977908224.

The previous prime is 78858518020309. The next prime is 78858518020351. The reversal of 78858518020316 is 61302081585887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4200581 + ... + 13242428.

It is an arithmetic number, because the mean of its divisors is an integer number (5775380611000).

Almost surely, 2^{78858518020316} is an apocalyptic number.

It is an amenable number.

78858518020316 is a deficient number, since it is larger than the sum of its proper divisors (59750616643684).

78858518020316 is a wasteful number, since it uses less digits than its factorization.

78858518020316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17447981 (or 17447979 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 62.

The spelling of 78858518020316 in words is "seventy-eight trillion, eight hundred fifty-eight billion, five hundred eighteen million, twenty thousand, three hundred sixteen".