12617322431 has 8 divisors (see below), whose sum is σ = 14884952064. Its totient is φ = 10465981560.

The previous prime is 12617322397. The next prime is 12617322449. The reversal of 12617322431 is 13422371621.

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 12617322431 - 2²² = 12613128127 is a prime.

It is a super-2 number, since 2×12617322431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12617322491) 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, 29071955 + ... + 29072388.

It is an arithmetic number, because the mean of its divisors is an integer number (1860619008).

Almost surely, 2^12617322431 is an apocalyptic number.

12617322431 is a deficient number, since it is larger than the sum of its proper divisors (2267629633).

12617322431 is an equidigital number, since it uses as much as digits as its factorization.

12617322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58144381.

The product of its digits is 12096, while the sum is 32.

The spelling of 12617322431 in words is "twelve billion, six hundred seventeen million, three hundred twenty-two thousand, four hundred thirty-one".