12641263299 has 40 divisors (see below), whose sum is σ = 22325777760. Its totient is φ = 6974481024.

The previous prime is 12641263273. The next prime is 12641263309. The reversal of 12641263299 is 99236214621.

12641263299 is a `hidden beast` number, since 1 + 2 + 6 + 4 + 1 + 2 + 632 + 9 + 9 = 666.

It is not a de Polignac number, because 12641263299 - 2¹⁵ = 12641230531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12641263259) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 367954 + ... + 400839.

It is an arithmetic number, because the mean of its divisors is an integer number (558144444).

Almost surely, 2^12641263299 is an apocalyptic number.

12641263299 is a deficient number, since it is larger than the sum of its proper divisors (9684514461).

12641263299 is an equidigital number, since it uses as much as digits as its factorization.

12641263299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768841 (or 768832 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The spelling of 12641263299 in words is "twelve billion, six hundred forty-one million, two hundred sixty-three thousand, two hundred ninety-nine".