315631563047 has 2 divisors, whose sum is σ = 315631563048. Its totient is φ = 315631563046.

The previous prime is 315631563043. The next prime is 315631563103. The reversal of 315631563047 is 740365136513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 315631563047 - 2² = 315631563043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315631562989 and 315631563007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315631563043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157815781523 + 157815781524.

It is an arithmetic number, because the mean of its divisors is an integer number (157815781524).

Almost surely, 2^315631563047 is an apocalyptic number.

315631563047 is a deficient number, since it is larger than the sum of its proper divisors (1).

315631563047 is an equidigital number, since it uses as much as digits as its factorization.

315631563047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 315631563047 in words is "three hundred fifteen billion, six hundred thirty-one million, five hundred sixty-three thousand, forty-seven".