313250415649 has 2 divisors, whose sum is σ = 313250415650. Its totient is φ = 313250415648.

The previous prime is 313250415631. The next prime is 313250415683. The reversal of 313250415649 is 946514052313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313144325649 + 106090000 = 559593^2 + 10300^2 .

It is a cyclic number.

It is not a de Polignac number, because 313250415649 - 2⁵ = 313250415617 is a prime.

It is not a weakly prime, because it can be changed into another prime (313250413649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156625207824 + 156625207825.

It is an arithmetic number, because the mean of its divisors is an integer number (156625207825).

Almost surely, 2^313250415649 is an apocalyptic number.

It is an amenable number.

313250415649 is a deficient number, since it is larger than the sum of its proper divisors (1).

313250415649 is an equidigital number, since it uses as much as digits as its factorization.

313250415649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 313250415649 in words is "three hundred thirteen billion, two hundred fifty million, four hundred fifteen thousand, six hundred forty-nine".