239738456539 has 2 divisors, whose sum is σ = 239738456540. Its totient is φ = 239738456538.

The previous prime is 239738456513. The next prime is 239738456579. The reversal of 239738456539 is 935654837932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 239738456539 - 2²³ = 239730067931 is a prime.

It is not a weakly prime, because it can be changed into another prime (239738456579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119869228269 + 119869228270.

It is an arithmetic number, because the mean of its divisors is an integer number (119869228270).

Almost surely, 2^239738456539 is an apocalyptic number.

239738456539 is a deficient number, since it is larger than the sum of its proper divisors (1).

239738456539 is an equidigital number, since it uses as much as digits as its factorization.

239738456539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146966400, while the sum is 64.

The spelling of 239738456539 in words is "two hundred thirty-nine billion, seven hundred thirty-eight million, four hundred fifty-six thousand, five hundred thirty-nine".