12723562205 has 8 divisors (see below), whose sum is σ = 15273160632. Its totient is φ = 10175592448.

The previous prime is 12723562193. The next prime is 12723562213. The reversal of 12723562205 is 50226532721.

It can be written as a sum of positive squares in 4 ways, for example, as 3105052729 + 9618509476 = 55723^2 + 98074^2 .

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 12723562205 - 2²⁴ = 12706784989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 389912 + ... + 421281.

It is an arithmetic number, because the mean of its divisors is an integer number (1909145079).

Almost surely, 2^12723562205 is an apocalyptic number.

It is an amenable number.

12723562205 is a deficient number, since it is larger than the sum of its proper divisors (2549598427).

12723562205 is an equidigital number, since it uses as much as digits as its factorization.

12723562205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814335.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 12723562205 in words is "twelve billion, seven hundred twenty-three million, five hundred sixty-two thousand, two hundred five".