12604452564 has 96 divisors (see below), whose sum is σ = 33413345280. Its totient is φ = 3663475200.

The previous prime is 12604452559. The next prime is 12604452577. The reversal of 12604452564 is 46525440621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 448767 + ... + 476025.

It is an arithmetic number, because the mean of its divisors is an integer number (348055680).

Almost surely, 2^12604452564 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12604452564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16706672640).

12604452564 is an abundant number, since it is smaller than the sum of its proper divisors (20808892716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12604452564 is a wasteful number, since it uses less digits than its factorization.

12604452564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27421 (or 27419 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The spelling of 12604452564 in words is "twelve billion, six hundred four million, four hundred fifty-two thousand, five hundred sixty-four".