12631322569 has 8 divisors (see below), whose sum is σ = 13297700000. Its totient is φ = 11965102272.

The previous prime is 12631322549. The next prime is 12631322581. The reversal of 12631322569 is 96522313621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12631322569 - 2¹¹ = 12631320521 is a prime.

It is a super-2 number, since 2×12631322569² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12631322549) 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 in 7 ways as a sum of consecutive naturals, for example, 148882 + ... + 217780.

It is an arithmetic number, because the mean of its divisors is an integer number (1662212500).

Almost surely, 2^12631322569 is an apocalyptic number.

12631322569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12631322569 is a deficient number, since it is larger than the sum of its proper divisors (666377431).

12631322569 is an equidigital number, since it uses as much as digits as its factorization.

12631322569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78567.

The product of its digits is 116640, while the sum is 40.

The spelling of 12631322569 in words is "twelve billion, six hundred thirty-one million, three hundred twenty-two thousand, five hundred sixty-nine".