38892963865 has 16 divisors (see below), whose sum is σ = 55178196480. Its totient is φ = 25749823680.

The previous prime is 38892963841. The next prime is 38892963869. The reversal of 38892963865 is 56836929883.

It is not a de Polignac number, because 38892963865 - 2⁹ = 38892963353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 38892963865.

It is not an unprimeable number, because it can be changed into a prime (38892963869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19158081 + ... + 19160110.

It is an arithmetic number, because the mean of its divisors is an integer number (3448637280).

Almost surely, 2^38892963865 is an apocalyptic number.

38892963865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38892963865 is a deficient number, since it is larger than the sum of its proper divisors (16285232615).

38892963865 is a wasteful number, since it uses less digits than its factorization.

38892963865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38318232.

The product of its digits is 134369280, while the sum is 67.

The spelling of 38892963865 in words is "thirty-eight billion, eight hundred ninety-two million, nine hundred sixty-three thousand, eight hundred sixty-five".