38631013139 has 2 divisors, whose sum is σ = 38631013140. Its totient is φ = 38631013138.

The previous prime is 38631013121. The next prime is 38631013159. The reversal of 38631013139 is 93131013683.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38631013139 - 2²⁰ = 38629964563 is a prime.

It is a super-2 number, since 2×38631013139² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38631013159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19315506569 + 19315506570.

It is an arithmetic number, because the mean of its divisors is an integer number (19315506570).

Almost surely, 2^38631013139 is an apocalyptic number.

38631013139 is a deficient number, since it is larger than the sum of its proper divisors (1).

38631013139 is an equidigital number, since it uses as much as digits as its factorization.

38631013139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 38631013139 in words is "thirty-eight billion, six hundred thirty-one million, thirteen thousand, one hundred thirty-nine".