38105201538 has 12 divisors (see below), whose sum is σ = 82561270038. Its totient is φ = 12701733840.

The previous prime is 38105201527. The next prime is 38105201557. The reversal of 38105201538 is 83510250183.

38105201538 is a `hidden beast` number, since 3 + 81 + 0 + 520 + 1 + 53 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19635576129 + 18469625409 = 140127^2 + 135903^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1058477803 + ... + 1058477838.

Almost surely, 2^38105201538 is an apocalyptic number.

38105201538 is an abundant number, since it is smaller than the sum of its proper divisors (44456068500).

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

38105201538 is a wasteful number, since it uses less digits than its factorization.

38105201538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2116955649 (or 2116955646 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 38105201538 in words is "thirty-eight billion, one hundred five million, two hundred one thousand, five hundred thirty-eight".