38478394086 has 16 divisors (see below), whose sum is σ = 83952859968. Its totient is φ = 11660119400.

The previous prime is 38478394067. The next prime is 38478394093. The reversal of 38478394086 is 68049387483.

It is a super-2 number, since 2×38478394086² (a number of 22 digits) contains 22 as substring.

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, 291502920 + ... + 291503051.

It is an arithmetic number, because the mean of its divisors is an integer number (5247053748).

Almost surely, 2^38478394086 is an apocalyptic number.

38478394086 is an abundant number, since it is smaller than the sum of its proper divisors (45474465882).

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

38478394086 is a wasteful number, since it uses less digits than its factorization.

38478394086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583005987.

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 38478394086 in words is "thirty-eight billion, four hundred seventy-eight million, three hundred ninety-four thousand, eighty-six".