15917346868 has 12 divisors (see below), whose sum is σ = 28608204772. Its totient is φ = 7743574080.

The previous prime is 15917346853. The next prime is 15917346871. The reversal of 15917346868 is 86864371951.

It can be written as a sum of positive squares in 2 ways, for example, as 10150159504 + 5767187364 = 100748^2 + 75942^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53774673 + ... + 53774968.

Almost surely, 2^15917346868 is an apocalyptic number.

It is an amenable number.

15917346868 is a deficient number, since it is larger than the sum of its proper divisors (12690857904).

15917346868 is a wasteful number, since it uses less digits than its factorization.

15917346868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107549682 (or 107549680 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The spelling of 15917346868 in words is "fifteen billion, nine hundred seventeen million, three hundred forty-six thousand, eight hundred sixty-eight".