15989068431361 has 2 divisors, whose sum is σ = 15989068431362. Its totient is φ = 15989068431360.

The previous prime is 15989068431317. The next prime is 15989068431377. The reversal of 15989068431361 is 16313486098951.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12625805864961 + 3363262566400 = 3553281^2 + 1833920^2 .

It is a cyclic number.

It is not a de Polignac number, because 15989068431361 - 2⁷ = 15989068431233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15989068431293 and 15989068431302.

It is not a weakly prime, because it can be changed into another prime (15989068231361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7994534215680 + 7994534215681.

It is an arithmetic number, because the mean of its divisors is an integer number (7994534215681).

Almost surely, 2^{15989068431361} is an apocalyptic number.

It is an amenable number.

15989068431361 is a deficient number, since it is larger than the sum of its proper divisors (1).

15989068431361 is an equidigital number, since it uses as much as digits as its factorization.

15989068431361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 64.

The spelling of 15989068431361 in words is "fifteen trillion, nine hundred eighty-nine billion, sixty-eight million, four hundred thirty-one thousand, three hundred sixty-one".