315408782445671 has 2 divisors, whose sum is σ = 315408782445672. Its totient is φ = 315408782445670.

The previous prime is 315408782445649. The next prime is 315408782445707. The reversal of 315408782445671 is 176544287804513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315408782445671 - 2²² = 315408778251367 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 315408782445598 and 315408782445607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315408782445611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157704391222835 + 157704391222836.

It is an arithmetic number, because the mean of its divisors is an integer number (157704391222836).

Almost surely, 2^{315408782445671} is an apocalyptic number.

315408782445671 is a deficient number, since it is larger than the sum of its proper divisors (1).

315408782445671 is an equidigital number, since it uses as much as digits as its factorization.

315408782445671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180633600, while the sum is 65.

The spelling of 315408782445671 in words is "three hundred fifteen trillion, four hundred eight billion, seven hundred eighty-two million, four hundred forty-five thousand, six hundred seventy-one".