12642140204 has 6 divisors (see below), whose sum is σ = 22123745364. Its totient is φ = 6321070100.

The previous prime is 12642140177. The next prime is 12642140209. The reversal of 12642140204 is 40204124621.

It is not an unprimeable number, because it can be changed into a prime (12642140209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1580267522 + ... + 1580267529.

It is an arithmetic number, because the mean of its divisors is an integer number (3687290894).

Almost surely, 2^12642140204 is an apocalyptic number.

It is an amenable number.

12642140204 is a deficient number, since it is larger than the sum of its proper divisors (9481605160).

12642140204 is a wasteful number, since it uses less digits than its factorization.

12642140204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3160535055 (or 3160535053 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 12642140204 its reverse (40204124621), we get a palindrome (52846264825).

The spelling of 12642140204 in words is "twelve billion, six hundred forty-two million, one hundred forty thousand, two hundred four".