315561636280487 has 2 divisors, whose sum is σ = 315561636280488. Its totient is φ = 315561636280486.

The previous prime is 315561636280477. The next prime is 315561636280511. The reversal of 315561636280487 is 784082636165513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315561636280487 - 2¹⁴ = 315561636264103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315561636280477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157780818140243 + 157780818140244.

It is an arithmetic number, because the mean of its divisors is an integer number (157780818140244).

Almost surely, 2^{315561636280487} is an apocalyptic number.

315561636280487 is a deficient number, since it is larger than the sum of its proper divisors (1).

315561636280487 is an equidigital number, since it uses as much as digits as its factorization.

315561636280487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 174182400, while the sum is 65.

The spelling of 315561636280487 in words is "three hundred fifteen trillion, five hundred sixty-one billion, six hundred thirty-six million, two hundred eighty thousand, four hundred eighty-seven".