315844005457 has 2 divisors, whose sum is σ = 315844005458. Its totient is φ = 315844005456.

The previous prime is 315844005443. The next prime is 315844005493. The reversal of 315844005457 is 754500448513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315168837201 + 675168256 = 561399^2 + 25984^2 .

It is a cyclic number.

It is not a de Polignac number, because 315844005457 - 2¹⁹ = 315843481169 is a prime.

It is not a weakly prime, because it can be changed into another prime (315844005557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157922002728 + 157922002729.

It is an arithmetic number, because the mean of its divisors is an integer number (157922002729).

Almost surely, 2^315844005457 is an apocalyptic number.

It is an amenable number.

315844005457 is a deficient number, since it is larger than the sum of its proper divisors (1).

315844005457 is an equidigital number, since it uses as much as digits as its factorization.

315844005457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344000, while the sum is 46.

The spelling of 315844005457 in words is "three hundred fifteen billion, eight hundred forty-four million, five thousand, four hundred fifty-seven".