12981654824327 has 4 divisors (see below), whose sum is σ = 14836176942096. Its totient is φ = 11127132706560.

The previous prime is 12981654824263. The next prime is 12981654824357. The reversal of 12981654824327 is 72342845618921.

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 12981654824327 - 2⁶ = 12981654824263 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 12981654824327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12981654824357) 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, 927261058874 + ... + 927261058887.

It is an arithmetic number, because the mean of its divisors is an integer number (3709044235524).

Almost surely, 2^{12981654824327} is an apocalyptic number.

12981654824327 is a deficient number, since it is larger than the sum of its proper divisors (1854522117769).

12981654824327 is an equidigital number, since it uses as much as digits as its factorization.

12981654824327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854522117768.

The product of its digits is 46448640, while the sum is 62.

The spelling of 12981654824327 in words is "twelve trillion, nine hundred eighty-one billion, six hundred fifty-four million, eight hundred twenty-four thousand, three hundred twenty-seven".