12645042404 has 12 divisors (see below), whose sum is σ = 22165648428. Its totient is φ = 6312000000.

The previous prime is 12645042359. The next prime is 12645042409. The reversal of 12645042404 is 40424054621.

It can be written as a sum of positive squares in 2 ways, for example, as 5219773504 + 7425268900 = 72248^2 + 86170^2 .

It is not an unprimeable number, because it can be changed into a prime (12645042409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2627597 + ... + 2632404.

It is an arithmetic number, because the mean of its divisors is an integer number (1847137369).

Almost surely, 2^12645042404 is an apocalyptic number.

It is an amenable number.

12645042404 is a deficient number, since it is larger than the sum of its proper divisors (9520606024).

12645042404 is a wasteful number, since it uses less digits than its factorization.

12645042404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260606 (or 5260604 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The spelling of 12645042404 in words is "twelve billion, six hundred forty-five million, forty-two thousand, four hundred four".