19312318159 has 2 divisors, whose sum is σ = 19312318160. Its totient is φ = 19312318158.

The previous prime is 19312318049. The next prime is 19312318183. The reversal of 19312318159 is 95181321391.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19312318159 is a prime.

It is a super-2 number, since 2×19312318159² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19312318559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9656159079 + 9656159080.

It is an arithmetic number, because the mean of its divisors is an integer number (9656159080).

Almost surely, 2^19312318159 is an apocalyptic number.

19312318159 is a deficient number, since it is larger than the sum of its proper divisors (1).

19312318159 is an equidigital number, since it uses as much as digits as its factorization.

19312318159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 43.

The spelling of 19312318159 in words is "nineteen billion, three hundred twelve million, three hundred eighteen thousand, one hundred fifty-nine".