315215478827 has 2 divisors, whose sum is σ = 315215478828. Its totient is φ = 315215478826.

The previous prime is 315215478763. The next prime is 315215478857. The reversal of 315215478827 is 728874512513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315215478827 - 2⁶ = 315215478763 is a prime.

It is not a weakly prime, because it can be changed into another prime (315215478857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157607739413 + 157607739414.

It is an arithmetic number, because the mean of its divisors is an integer number (157607739414).

Almost surely, 2^315215478827 is an apocalyptic number.

315215478827 is a deficient number, since it is larger than the sum of its proper divisors (1).

315215478827 is an equidigital number, since it uses as much as digits as its factorization.

315215478827 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3763200, while the sum is 53.

The spelling of 315215478827 in words is "three hundred fifteen billion, two hundred fifteen million, four hundred seventy-eight thousand, eight hundred twenty-seven".