12781239696627 has 8 divisors (see below), whose sum is σ = 17404241289216. Its totient is φ = 8339532284232.

The previous prime is 12781239696607. The next prime is 12781239696629. The reversal of 12781239696627 is 72669693218721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12781239696627 - 2⁸ = 12781239696371 is a prime.

It is a super-3 number, since 3×12781239696627³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12781239696629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45323544883 + ... + 45323545164.

It is an arithmetic number, because the mean of its divisors is an integer number (2175530161152).

Almost surely, 2^{12781239696627} is an apocalyptic number.

12781239696627 is a deficient number, since it is larger than the sum of its proper divisors (4623001592589).

12781239696627 is an equidigital number, since it uses as much as digits as its factorization.

12781239696627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90647090097.

The product of its digits is 164602368, while the sum is 69.

The spelling of 12781239696627 in words is "twelve trillion, seven hundred eighty-one billion, two hundred thirty-nine million, six hundred ninety-six thousand, six hundred twenty-seven".