38515649685 has 16 divisors (see below), whose sum is σ = 63290582016. Its totient is φ = 19986499008.

The previous prime is 38515649677. The next prime is 38515649687. The reversal of 38515649685 is 58694651583.

It is not a de Polignac number, because 38515649685 - 2³ = 38515649677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38515649687) 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, 34698229 + ... + 34699338.

It is an arithmetic number, because the mean of its divisors is an integer number (3955661376).

Almost surely, 2^38515649685 is an apocalyptic number.

It is an amenable number.

38515649685 is a deficient number, since it is larger than the sum of its proper divisors (24774932331).

38515649685 is a wasteful number, since it uses less digits than its factorization.

38515649685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69397612.

The product of its digits is 31104000, while the sum is 60.

The spelling of 38515649685 in words is "thirty-eight billion, five hundred fifteen million, six hundred forty-nine thousand, six hundred eighty-five".