38920186536564 has 24 divisors (see below), whose sum is σ = 90814867543008. Its totient is φ = 12973238518240.

The previous prime is 38920186536559. The next prime is 38920186536683. The reversal of 38920186536564 is 46563568102983.

It is a super-3 number, since 3×38920186536564³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38920186536495 and 38920186536504.

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, 18589107 + ... + 20576570.

It is an arithmetic number, because the mean of its divisors is an integer number (3783952814292).

Almost surely, 2^{38920186536564} is an apocalyptic number.

It is an amenable number.

38920186536564 is an abundant number, since it is smaller than the sum of its proper divisors (51894681006444).

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

38920186536564 is a wasteful number, since it uses less digits than its factorization.

38920186536564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39248495 (or 39248493 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 66.

The spelling of 38920186536564 in words is "thirty-eight trillion, nine hundred twenty billion, one hundred eighty-six million, five hundred thirty-six thousand, five hundred sixty-four".