312538020589 has 2 divisors, whose sum is σ = 312538020590. Its totient is φ = 312538020588.

The previous prime is 312538020581. The next prime is 312538020607. The reversal of 312538020589 is 985020835213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304212918025 + 8325102564 = 551555^2 + 91242^2 .

It is a cyclic number.

It is not a de Polignac number, because 312538020589 - 2³ = 312538020581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312538020581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156269010294 + 156269010295.

It is an arithmetic number, because the mean of its divisors is an integer number (156269010295).

Almost surely, 2^312538020589 is an apocalyptic number.

It is an amenable number.

312538020589 is a deficient number, since it is larger than the sum of its proper divisors (1).

312538020589 is an equidigital number, since it uses as much as digits as its factorization.

312538020589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 312538020589 in words is "three hundred twelve billion, five hundred thirty-eight million, twenty thousand, five hundred eighty-nine".