315138267739 has 2 divisors, whose sum is σ = 315138267740. Its totient is φ = 315138267738.

The previous prime is 315138267727. The next prime is 315138267781. The reversal of 315138267739 is 937762831513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315138267739 - 2¹¹ = 315138265691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315138267739.

It is not a weakly prime, because it can be changed into another prime (315138267709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157569133869 + 157569133870.

It is an arithmetic number, because the mean of its divisors is an integer number (157569133870).

Almost surely, 2^315138267739 is an apocalyptic number.

315138267739 is a deficient number, since it is larger than the sum of its proper divisors (1).

315138267739 is an equidigital number, since it uses as much as digits as its factorization.

315138267739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 55.

The spelling of 315138267739 in words is "three hundred fifteen billion, one hundred thirty-eight million, two hundred sixty-seven thousand, seven hundred thirty-nine".