12008451731005 has 4 divisors (see below), whose sum is σ = 14410142077212. Its totient is φ = 9606761384800.

The previous prime is 12008451730967. The next prime is 12008451731063. The reversal of 12008451731005 is 50013715480021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1847568718009 + 10160883012996 = 1359253^2 + 3187614^2 .

It is not a de Polignac number, because 12008451731005 - 2²⁹ = 12007914860093 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 1200845173096 + ... + 1200845173105.

It is an arithmetic number, because the mean of its divisors is an integer number (3602535519303).

Almost surely, 2^{12008451731005} is an apocalyptic number.

It is an amenable number.

12008451731005 is a deficient number, since it is larger than the sum of its proper divisors (2401690346207).

12008451731005 is an equidigital number, since it uses as much as digits as its factorization.

12008451731005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401690346206.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 12008451731005 in words is "twelve trillion, eight billion, four hundred fifty-one million, seven hundred thirty-one thousand, five".