38678403552216 has 128 divisors (see below), whose sum is σ = 100451765468160. Its totient is φ = 12400444224000.

The previous prime is 38678403552209. The next prime is 38678403552221. The reversal of 38678403552216 is 61225530487683.

It is a self number, because there is not a number n which added to its sum of digits gives 38678403552216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56251405 + ... + 56934851.

It is an arithmetic number, because the mean of its divisors is an integer number (784779417720).

Almost surely, 2^{38678403552216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38678403552216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50225882734080).

38678403552216 is an abundant number, since it is smaller than the sum of its proper divisors (61773361915944).

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

38678403552216 is a wasteful number, since it uses less digits than its factorization.

38678403552216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684225 (or 684221 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 60.

The spelling of 38678403552216 in words is "thirty-eight trillion, six hundred seventy-eight billion, four hundred three million, five hundred fifty-two thousand, two hundred sixteen".