12637206323279 has 4 divisors (see below), whose sum is σ = 12637705823160. Its totient is φ = 12636706823400.

The previous prime is 12637206323267. The next prime is 12637206323309. The reversal of 12637206323279 is 97232360273621.

12637206323279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12637206323279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12637206323279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12637206323879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249711989 + ... + 249762590.

It is an arithmetic number, because the mean of its divisors is an integer number (3159426455790).

Almost surely, 2^{12637206323279} is an apocalyptic number.

12637206323279 is a deficient number, since it is larger than the sum of its proper divisors (499499881).

12637206323279 is an equidigital number, since it uses as much as digits as its factorization.

12637206323279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499499880.

The product of its (nonzero) digits is 6858432, while the sum is 53.

The spelling of 12637206323279 in words is "twelve trillion, six hundred thirty-seven billion, two hundred six million, three hundred twenty-three thousand, two hundred seventy-nine".