315218552739589 has 2 divisors, whose sum is σ = 315218552739590. Its totient is φ = 315218552739588.

The previous prime is 315218552739511. The next prime is 315218552739611. The reversal of 315218552739589 is 985937255812513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173381528823364 + 141837023916225 = 13167442^2 + 11909535^2 .

It is an emirp because it is prime and its reverse (985937255812513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315218552739589 - 2²⁹ = 315218015868677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315218552739089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157609276369794 + 157609276369795.

It is an arithmetic number, because the mean of its divisors is an integer number (157609276369795).

Almost surely, 2^{315218552739589} is an apocalyptic number.

It is an amenable number.

315218552739589 is a deficient number, since it is larger than the sum of its proper divisors (1).

315218552739589 is an equidigital number, since it uses as much as digits as its factorization.

315218552739589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 816480000, while the sum is 73.

The spelling of 315218552739589 in words is "three hundred fifteen trillion, two hundred eighteen billion, five hundred fifty-two million, seven hundred thirty-nine thousand, five hundred eighty-nine".