315868139407 has 2 divisors, whose sum is σ = 315868139408. Its totient is φ = 315868139406.

The previous prime is 315868139333. The next prime is 315868139437. The reversal of 315868139407 is 704931868513.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315868139407 - 2¹⁵ = 315868106639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315868139437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157934069703 + 157934069704.

It is an arithmetic number, because the mean of its divisors is an integer number (157934069704).

Almost surely, 2^315868139407 is an apocalyptic number.

315868139407 is a deficient number, since it is larger than the sum of its proper divisors (1).

315868139407 is an equidigital number, since it uses as much as digits as its factorization.

315868139407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 315868139407 in words is "three hundred fifteen billion, eight hundred sixty-eight million, one hundred thirty-nine thousand, four hundred seven".