38191136239 has 2 divisors, whose sum is σ = 38191136240. Its totient is φ = 38191136238.

The previous prime is 38191136231. The next prime is 38191136279. The reversal of 38191136239 is 93263119183.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38191136239 - 2³ = 38191136231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38191136231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19095568119 + 19095568120.

It is an arithmetic number, because the mean of its divisors is an integer number (19095568120).

Almost surely, 2^38191136239 is an apocalyptic number.

38191136239 is a deficient number, since it is larger than the sum of its proper divisors (1).

38191136239 is an equidigital number, since it uses as much as digits as its factorization.

38191136239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The spelling of 38191136239 in words is "thirty-eight billion, one hundred ninety-one million, one hundred thirty-six thousand, two hundred thirty-nine".