315628219391 has 2 divisors, whose sum is σ = 315628219392. Its totient is φ = 315628219390.

The previous prime is 315628219351. The next prime is 315628219397. The reversal of 315628219391 is 193912826513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315628219391 - 2⁶ = 315628219327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315628219397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157814109695 + 157814109696.

It is an arithmetic number, because the mean of its divisors is an integer number (157814109696).

Almost surely, 2^315628219391 is an apocalyptic number.

315628219391 is a deficient number, since it is larger than the sum of its proper divisors (1).

315628219391 is an equidigital number, since it uses as much as digits as its factorization.

315628219391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 50.

The spelling of 315628219391 in words is "three hundred fifteen billion, six hundred twenty-eight million, two hundred nineteen thousand, three hundred ninety-one".