12344642005 has 16 divisors (see below), whose sum is σ = 15021699264. Its totient is φ = 9737055360.

The previous prime is 12344641999. The next prime is 12344642017. The reversal of 12344642005 is 50024644321.

It is not a de Polignac number, because 12344642005 - 2¹⁷ = 12344510933 is a prime.

It is a super-2 number, since 2×12344642005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1875370 + ... + 1881940.

It is an arithmetic number, because the mean of its divisors is an integer number (938856204).

Almost surely, 2^12344642005 is an apocalyptic number.

It is an amenable number.

12344642005 is a deficient number, since it is larger than the sum of its proper divisors (2677057259).

12344642005 is an equidigital number, since it uses as much as digits as its factorization.

12344642005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11796.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 12344642005 in words is "twelve billion, three hundred forty-four million, six hundred forty-two thousand, five".