15875444481364 has 12 divisors (see below), whose sum is σ = 29919106907284. Its totient is φ = 7327128222144.

The previous prime is 15875444481343. The next prime is 15875444481373. The reversal of 15875444481364 is 46318444457851.

It can be written as a sum of positive squares in 2 ways, for example, as 6291528757264 + 9583915724100 = 2508292^2 + 3095790^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15875444481296 and 15875444481305.

It is a congruent number.

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, 152648504577 + ... + 152648504680.

Almost surely, 2^{15875444481364} is an apocalyptic number.

It is an amenable number.

15875444481364 is a deficient number, since it is larger than the sum of its proper divisors (14043662425920).

15875444481364 is a wasteful number, since it uses less digits than its factorization.

15875444481364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305297009274 (or 305297009272 counting only the distinct ones).

The product of its digits is 206438400, while the sum is 64.

The spelling of 15875444481364 in words is "fifteen trillion, eight hundred seventy-five billion, four hundred forty-four million, four hundred eighty-one thousand, three hundred sixty-four".