319139581507 has 2 divisors, whose sum is σ = 319139581508. Its totient is φ = 319139581506.

The previous prime is 319139581457. The next prime is 319139581529. The reversal of 319139581507 is 705185931913.

It is a strong prime.

It is an emirp because it is prime and its reverse (705185931913) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 319139581507 - 2¹¹ = 319139579459 is a prime.

It is not a weakly prime, because it can be changed into another prime (319139581597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159569790753 + 159569790754.

It is an arithmetic number, because the mean of its divisors is an integer number (159569790754).

Almost surely, 2^319139581507 is an apocalyptic number.

319139581507 is a deficient number, since it is larger than the sum of its proper divisors (1).

319139581507 is an equidigital number, since it uses as much as digits as its factorization.

319139581507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1020600, while the sum is 52.

The spelling of 319139581507 in words is "three hundred nineteen billion, one hundred thirty-nine million, five hundred eighty-one thousand, five hundred seven".