15888117313 has 2 divisors, whose sum is σ = 15888117314. Its totient is φ = 15888117312.

The previous prime is 15888117263. The next prime is 15888117317. The reversal of 15888117313 is 31371188851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11199565584 + 4688551729 = 105828^2 + 68473^2 .

It is an emirp because it is prime and its reverse (31371188851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15888117313 - 2²⁹ = 15351246401 is a prime.

It is not a weakly prime, because it can be changed into another prime (15888117317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7944058656 + 7944058657.

It is an arithmetic number, because the mean of its divisors is an integer number (7944058657).

Almost surely, 2^15888117313 is an apocalyptic number.

It is an amenable number.

15888117313 is a deficient number, since it is larger than the sum of its proper divisors (1).

15888117313 is an equidigital number, since it uses as much as digits as its factorization.

15888117313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 46.

The spelling of 15888117313 in words is "fifteen billion, eight hundred eighty-eight million, one hundred seventeen thousand, three hundred thirteen".