39138531059 has 2 divisors, whose sum is σ = 39138531060. Its totient is φ = 39138531058.

The previous prime is 39138531031. The next prime is 39138531073. The reversal of 39138531059 is 95013583193.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 39138531059 - 2⁸ = 39138530803 is a prime.

It is a super-2 number, since 2×39138531059² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39138531259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19569265529 + 19569265530.

It is an arithmetic number, because the mean of its divisors is an integer number (19569265530).

Almost surely, 2^39138531059 is an apocalyptic number.

39138531059 is a deficient number, since it is larger than the sum of its proper divisors (1).

39138531059 is an equidigital number, since it uses as much as digits as its factorization.

39138531059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 437400, while the sum is 47.

The spelling of 39138531059 in words is "thirty-nine billion, one hundred thirty-eight million, five hundred thirty-one thousand, fifty-nine".