15797085775 has 24 divisors (see below), whose sum is σ = 20118243600. Its totient is φ = 12297427200.

The previous prime is 15797085743. The next prime is 15797085809. The reversal of 15797085775 is 57758079751.

It is not a de Polignac number, because 15797085775 - 2⁵ = 15797085743 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 378916 + ... + 418534.

It is an arithmetic number, because the mean of its divisors is an integer number (838260150).

Almost surely, 2^15797085775 is an apocalyptic number.

15797085775 is a deficient number, since it is larger than the sum of its proper divisors (4321157825).

15797085775 is a wasteful number, since it uses less digits than its factorization.

15797085775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40059 (or 40054 counting only the distinct ones).

The product of its (nonzero) digits is 21609000, while the sum is 61.

The spelling of 15797085775 in words is "fifteen billion, seven hundred ninety-seven million, eighty-five thousand, seven hundred seventy-five".