315094736809 has 2 divisors, whose sum is σ = 315094736810. Its totient is φ = 315094736808.

The previous prime is 315094736791. The next prime is 315094736813. The reversal of 315094736809 is 908637490513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271782883584 + 43311853225 = 521328^2 + 208115^2 .

It is a cyclic number.

It is not a de Polignac number, because 315094736809 - 2¹¹ = 315094734761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 315094736809.

It is not a weakly prime, because it can be changed into another prime (315094736849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157547368404 + 157547368405.

It is an arithmetic number, because the mean of its divisors is an integer number (157547368405).

Almost surely, 2^315094736809 is an apocalyptic number.

It is an amenable number.

315094736809 is a deficient number, since it is larger than the sum of its proper divisors (1).

315094736809 is an equidigital number, since it uses as much as digits as its factorization.

315094736809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 55.

The spelling of 315094736809 in words is "three hundred fifteen billion, ninety-four million, seven hundred thirty-six thousand, eight hundred nine".