38103639864 has 64 divisors (see below), whose sum is σ = 99931968000. Its totient is φ = 12090503040.

The previous prime is 38103639841. The next prime is 38103639869. The reversal of 38103639864 is 46893630183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38103639869) 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, 336124 + ... + 434955.

It is an arithmetic number, because the mean of its divisors is an integer number (1561437000).

Almost surely, 2^38103639864 is an apocalyptic number.

It is an amenable number.

38103639864 is an abundant number, since it is smaller than the sum of its proper divisors (61828328136).

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

38103639864 is a wasteful number, since it uses less digits than its factorization.

38103639864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771188 (or 771184 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 38103639864 in words is "thirty-eight billion, one hundred three million, six hundred thirty-nine thousand, eight hundred sixty-four".