12639027514 has 4 divisors (see below), whose sum is σ = 18958541274. Its totient is φ = 6319513756.

The previous prime is 12639027509. The next prime is 12639027521. The reversal of 12639027514 is 41572093621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41572093621 = 251 ⋅165625871.

It can be written as a sum of positive squares in only one way, i.e., 8990263489 + 3648764025 = 94817^2 + 60405^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3159756877 + ... + 3159756880.

Almost surely, 2^12639027514 is an apocalyptic number.

12639027514 is a deficient number, since it is larger than the sum of its proper divisors (6319513760).

12639027514 is an equidigital number, since it uses as much as digits as its factorization.

12639027514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6319513759.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 12639027514 in words is "twelve billion, six hundred thirty-nine million, twenty-seven thousand, five hundred fourteen".