38678653538658 has 40 divisors (see below), whose sum is σ = 99050096895552. Its totient is φ = 11051043867864.

The previous prime is 38678653538617. The next prime is 38678653538687. The reversal of 38678653538658 is 85683535687683.

38678653538658 is a `hidden beast` number, since 3 + 8 + 6 + 78 + 6 + 5 + 3 + 538 + 6 + 5 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17054078910 + ... + 17054081177.

Almost surely, 2^{38678653538658} is an apocalyptic number.

38678653538658 is an abundant number, since it is smaller than the sum of its proper divisors (60371443356894).

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

38678653538658 is a wasteful number, since it uses less digits than its factorization.

38678653538658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34108160108 (or 34108160099 counting only the distinct ones).

The product of its digits is 20901888000, while the sum is 81.

The spelling of 38678653538658 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred fifty-three million, five hundred thirty-eight thousand, six hundred fifty-eight".