38645312886 has 48 divisors (see below), whose sum is σ = 84078618624. Its totient is φ = 12828447792.

The previous prime is 38645312879. The next prime is 38645312899. The reversal of 38645312886 is 68821354683.

38645312886 is a `hidden beast` number, since 3 + 8 + 6 + 4 + 531 + 28 + 86 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8214811 + ... + 8219513.

It is an arithmetic number, because the mean of its divisors is an integer number (1751637888).

Almost surely, 2^38645312886 is an apocalyptic number.

38645312886 is an abundant number, since it is smaller than the sum of its proper divisors (45433305738).

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

38645312886 is a wasteful number, since it uses less digits than its factorization.

38645312886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505 (or 6502 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 38645312886 in words is "thirty-eight billion, six hundred forty-five million, three hundred twelve thousand, eight hundred eighty-six".