15399588939313 has 2 divisors, whose sum is σ = 15399588939314. Its totient is φ = 15399588939312.

The previous prime is 15399588939311. The next prime is 15399588939341. The reversal of 15399588939313 is 31393988599351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14861695777569 + 537893161744 = 3855087^2 + 733412^2 .

It is a cyclic number.

It is not a de Polignac number, because 15399588939313 - 2¹ = 15399588939311 is a prime.

It is a super-2 number, since 2×15399588939313² (a number of 27 digits) contains 22 as substring.

Together with 15399588939311, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 15399588939313.

It is not a weakly prime, because it can be changed into another prime (15399588939311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7699794469656 + 7699794469657.

It is an arithmetic number, because the mean of its divisors is an integer number (7699794469657).

Almost surely, 2^{15399588939313} is an apocalyptic number.

It is an amenable number.

15399588939313 is a deficient number, since it is larger than the sum of its proper divisors (1).

15399588939313 is an equidigital number, since it uses as much as digits as its factorization.

15399588939313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 850305600, while the sum is 76.

The spelling of 15399588939313 in words is "fifteen trillion, three hundred ninety-nine billion, five hundred eighty-eight million, nine hundred thirty-nine thousand, three hundred thirteen".