15783116474 has 16 divisors (see below), whose sum is σ = 23790087720. Its totient is φ = 7853122560.

The previous prime is 15783116473. The next prime is 15783116497. The reversal of 15783116474 is 47461138751.

It can be written as a sum of positive squares in 4 ways, for example, as 15561315025 + 221801449 = 124745^2 + 14893^2 .

It is not an unprimeable number, because it can be changed into a prime (15783116473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033454 + ... + 1048614.

Almost surely, 2^15783116474 is an apocalyptic number.

15783116474 is a deficient number, since it is larger than the sum of its proper divisors (8006971246).

15783116474 is a wasteful number, since it uses less digits than its factorization.

15783116474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17665.

The product of its digits is 564480, while the sum is 47.

The spelling of 15783116474 in words is "fifteen billion, seven hundred eighty-three million, one hundred sixteen thousand, four hundred seventy-four".