12604634919 has 12 divisors (see below), whose sum is σ = 18279234792. Its totient is φ = 8369610000.

The previous prime is 12604634909. The next prime is 12604634963. The reversal of 12604634919 is 91943640621.

12604634919 is a `hidden beast` number, since 1 + 2 + 6 + 0 + 4 + 634 + 9 + 1 + 9 = 666.

It is not a de Polignac number, because 12604634919 - 2⁹ = 12604634407 is a prime.

It is a super-2 number, since 2×12604634919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12604634909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2787612 + ... + 2792129.

It is an arithmetic number, because the mean of its divisors is an integer number (1523269566).

Almost surely, 2^12604634919 is an apocalyptic number.

12604634919 is a deficient number, since it is larger than the sum of its proper divisors (5674599873).

12604634919 is a wasteful number, since it uses less digits than its factorization.

12604634919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579998 (or 5579995 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 12604634919 in words is "twelve billion, six hundred four million, six hundred thirty-four thousand, nine hundred nineteen".