12815649304 has 32 divisors (see below), whose sum is σ = 24338611440. Its totient is φ = 6325862400.

The previous prime is 12815649299. The next prime is 12815649373. The reversal of 12815649304 is 40394651821.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170584 + ... + 233944.

Almost surely, 2^12815649304 is an apocalyptic number.

It is an amenable number.

12815649304 is a deficient number, since it is larger than the sum of its proper divisors (11522962136).

12815649304 is a wasteful number, since it uses less digits than its factorization.

12815649304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63691 (or 63687 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 12815649304 in words is "twelve billion, eight hundred fifteen million, six hundred forty-nine thousand, three hundred four".