12999627437306 has 4 divisors (see below), whose sum is σ = 19499441155962. Its totient is φ = 6499813718652.

The previous prime is 12999627437263. The next prime is 12999627437333. The reversal of 12999627437306 is 60373472699921.

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

It can be written as a sum of positive squares in only one way, i.e., 11739250735081 + 1260376702225 = 3426259^2 + 1122665^2 .

It is a super-3 number, since 3×12999627437306³ (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249906859325 + ... + 3249906859328.

Almost surely, 2^{12999627437306} is an apocalyptic number.

12999627437306 is a deficient number, since it is larger than the sum of its proper divisors (6499813718656).

12999627437306 is an equidigital number, since it uses as much as digits as its factorization.

12999627437306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6499813718655.

The product of its (nonzero) digits is 185177664, while the sum is 68.

The spelling of 12999627437306 in words is "twelve trillion, nine hundred ninety-nine billion, six hundred twenty-seven million, four hundred thirty-seven thousand, three hundred six".