12645463927 has 8 divisors (see below), whose sum is σ = 13562166960. Its totient is φ = 11753876160.

The previous prime is 12645463903. The next prime is 12645463937. The reversal of 12645463927 is 72936454621.

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

It is a cyclic number.

It is not a de Polignac number, because 12645463927 - 2¹⁵ = 12645431159 is a prime.

It is a super-2 number, since 2×12645463927² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645463937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6277774 + ... + 6279787.

It is an arithmetic number, because the mean of its divisors is an integer number (1695270870).

Almost surely, 2^12645463927 is an apocalyptic number.

12645463927 is a deficient number, since it is larger than the sum of its proper divisors (916703033).

12645463927 is a wasteful number, since it uses less digits than its factorization.

12645463927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12557633.

The product of its digits is 2177280, while the sum is 49.

The spelling of 12645463927 in words is "twelve billion, six hundred forty-five million, four hundred sixty-three thousand, nine hundred twenty-seven".