315897070409 has 2 divisors, whose sum is σ = 315897070410. Its totient is φ = 315897070408.

The previous prime is 315897070403. The next prime is 315897070427. The reversal of 315897070409 is 904070798513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 305729373184 + 10167697225 = 552928^2 + 100835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315897070409 is a prime.

It is not a weakly prime, because it can be changed into another prime (315897070403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157948535204 + 157948535205.

It is an arithmetic number, because the mean of its divisors is an integer number (157948535205).

Almost surely, 2^315897070409 is an apocalyptic number.

It is an amenable number.

315897070409 is a deficient number, since it is larger than the sum of its proper divisors (1).

315897070409 is an equidigital number, since it uses as much as digits as its factorization.

315897070409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 315897070409 in words is "three hundred fifteen billion, eight hundred ninety-seven million, seventy thousand, four hundred nine".