13249636432 has 10 divisors (see below), whose sum is σ = 25671170618. Its totient is φ = 6624818208.

The previous prime is 13249636429. The next prime is 13249636447. The reversal of 13249636432 is 23463694231.

It can be written as a sum of positive squares in only one way, i.e., 13247089216 + 2547216 = 115096^2 + 1596^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414051123 + ... + 414051154.

Almost surely, 2^13249636432 is an apocalyptic number.

It is an amenable number.

13249636432 is a deficient number, since it is larger than the sum of its proper divisors (12421534186).

13249636432 is an equidigital number, since it uses as much as digits as its factorization.

13249636432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828102285 (or 828102279 counting only the distinct ones).

The product of its digits is 559872, while the sum is 43.

The spelling of 13249636432 in words is "thirteen billion, two hundred forty-nine million, six hundred thirty-six thousand, four hundred thirty-two".