315551310355609 has 2 divisors, whose sum is σ = 315551310355610. Its totient is φ = 315551310355608.

The previous prime is 315551310355597. The next prime is 315551310355663. The reversal of 315551310355609 is 906553013155513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301821024762009 + 13730285593600 = 17372997^2 + 3705440^2 .

It is a cyclic number.

It is not a de Polignac number, because 315551310355609 - 2²³ = 315551301967001 is a prime.

It is not a weakly prime, because it can be changed into another prime (315551310355709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157775655177804 + 157775655177805.

It is an arithmetic number, because the mean of its divisors is an integer number (157775655177805).

Almost surely, 2^{315551310355609} is an apocalyptic number.

It is an amenable number.

315551310355609 is a deficient number, since it is larger than the sum of its proper divisors (1).

315551310355609 is an equidigital number, since it uses as much as digits as its factorization.

315551310355609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4556250, while the sum is 52.

The spelling of 315551310355609 in words is "three hundred fifteen trillion, five hundred fifty-one billion, three hundred ten million, three hundred fifty-five thousand, six hundred nine".