12726623015 has 4 divisors (see below), whose sum is σ = 15271947624. Its totient is φ = 10181298408.

The previous prime is 12726622991. The next prime is 12726623023. The reversal of 12726623015 is 51032662721.

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

It is a cyclic number.

It is not a de Polignac number, because 12726623015 - 2²⁸ = 12458187559 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 3 ways as a sum of consecutive naturals, for example, 1272662297 + ... + 1272662306.

It is an arithmetic number, because the mean of its divisors is an integer number (3817986906).

Almost surely, 2^12726623015 is an apocalyptic number.

12726623015 is a deficient number, since it is larger than the sum of its proper divisors (2545324609).

12726623015 is an equidigital number, since it uses as much as digits as its factorization.

12726623015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2545324608.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 12726623015 in words is "twelve billion, seven hundred twenty-six million, six hundred twenty-three thousand, fifteen".