12642563404 has 6 divisors (see below), whose sum is σ = 22124485964. Its totient is φ = 6321281700.

The previous prime is 12642563359. The next prime is 12642563419. The reversal of 12642563404 is 40436524621.

12642563404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580320422 + ... + 1580320429.

Almost surely, 2^12642563404 is an apocalyptic number.

It is an amenable number.

12642563404 is a deficient number, since it is larger than the sum of its proper divisors (9481922560).

12642563404 is a wasteful number, since it uses less digits than its factorization.

12642563404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160640855 (or 3160640853 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

The spelling of 12642563404 in words is "twelve billion, six hundred forty-two million, five hundred sixty-three thousand, four hundred four".