12651388877639 has 8 divisors (see below), whose sum is σ = 12756691200000. Its totient is φ = 12546175385016.

The previous prime is 12651388877537. The next prime is 12651388877669. The reversal of 12651388877639 is 93677888315621.

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 12651388877639 - 2²⁰ = 12651387829063 is a prime.

It is a super-2 number, since 2×12651388877639² (a number of 27 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 (12651388877669) 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, 21921389 + ... + 22491110.

It is an arithmetic number, because the mean of its divisors is an integer number (1594586400000).

Almost surely, 2^{12651388877639} is an apocalyptic number.

12651388877639 is a deficient number, since it is larger than the sum of its proper divisors (105302322361).

12651388877639 is a wasteful number, since it uses less digits than its factorization.

12651388877639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44414869.

The product of its digits is 731566080, while the sum is 74.

The spelling of 12651388877639 in words is "twelve trillion, six hundred fifty-one billion, three hundred eighty-eight million, eight hundred seventy-seven thousand, six hundred thirty-nine".