12732473986 has 16 divisors (see below), whose sum is σ = 20715390360. Its totient is φ = 5845611520.

The previous prime is 12732473959. The next prime is 12732473989. The reversal of 12732473986 is 68937423721.

It can be written as a sum of positive squares in 4 ways, for example, as 11711351961 + 1021122025 = 108219^2 + 31955^2 .

It is not an unprimeable number, because it can be changed into a prime (12732473989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4565491 + ... + 4568278.

Almost surely, 2^12732473986 is an apocalyptic number.

12732473986 is a deficient number, since it is larger than the sum of its proper divisors (7982916374).

12732473986 is a wasteful number, since it uses less digits than its factorization.

12732473986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133829.

The product of its digits is 3048192, while the sum is 52.

The spelling of 12732473986 in words is "twelve billion, seven hundred thirty-two million, four hundred seventy-three thousand, nine hundred eighty-six".