65871765938 has 16 divisors (see below), whose sum is σ = 109154597760. Its totient is φ = 29562702000.

The previous prime is 65871765913. The next prime is 65871765941. The reversal of 65871765938 is 83956717856.

65871765938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 18948713 + ... + 18952188.

It is an arithmetic number, because the mean of its divisors is an integer number (6822162360).

Almost surely, 2^65871765938 is an apocalyptic number.

65871765938 is a deficient number, since it is larger than the sum of its proper divisors (43282831822).

65871765938 is a wasteful number, since it uses less digits than its factorization.

65871765938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37900993.

The product of its digits is 76204800, while the sum is 65.

The spelling of 65871765938 in words is "sixty-five billion, eight hundred seventy-one million, seven hundred sixty-five thousand, nine hundred thirty-eight".