12640044199 has 2 divisors, whose sum is σ = 12640044200. Its totient is φ = 12640044198.

The previous prime is 12640044173. The next prime is 12640044223. The reversal of 12640044199 is 99144004621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12640044199 - 2⁵ = 12640044167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12640054199) by changing a digit.

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 as a sum of consecutive naturals, namely, 6320022099 + 6320022100.

It is an arithmetic number, because the mean of its divisors is an integer number (6320022100).

Almost surely, 2^12640044199 is an apocalyptic number.

12640044199 is a deficient number, since it is larger than the sum of its proper divisors (1).

12640044199 is an equidigital number, since it uses as much as digits as its factorization.

12640044199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 12640044199 in words is "twelve billion, six hundred forty million, forty-four thousand, one hundred ninety-nine".