15787130756 has 12 divisors (see below), whose sum is σ = 27660413760. Its totient is φ = 7884155400.

The previous prime is 15787130731. The next prime is 15787130771. The reversal of 15787130756 is 65703178751.

It is a super-2 number, since 2×15787130756² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2348720 + ... + 2355431.

It is an arithmetic number, because the mean of its divisors is an integer number (2305034480).

Almost surely, 2^15787130756 is an apocalyptic number.

It is an amenable number.

15787130756 is a deficient number, since it is larger than the sum of its proper divisors (11873283004).

15787130756 is a wasteful number, since it uses less digits than its factorization.

15787130756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704994 (or 4704992 counting only the distinct ones).

The product of its (nonzero) digits is 1234800, while the sum is 50.

The spelling of 15787130756 in words is "fifteen billion, seven hundred eighty-seven million, one hundred thirty thousand, seven hundred fifty-six".