12651628544621 has 8 divisors (see below), whose sum is σ = 14528185888800. Its totient is φ = 10896139416240.

The previous prime is 12651628544587. The next prime is 12651628544629. The reversal of 12651628544621 is 12644582615621.

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 12651628544621 - 2⁶ = 12651628544557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651628544629) 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, 30267053726 + ... + 30267054143.

It is an arithmetic number, because the mean of its divisors is an integer number (1816023236100).

Almost surely, 2^{12651628544621} is an apocalyptic number.

12651628544621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12651628544621 is a deficient number, since it is larger than the sum of its proper divisors (1876557344179).

12651628544621 is a wasteful number, since it uses less digits than its factorization.

12651628544621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60534107899.

The product of its digits is 5529600, while the sum is 53.

The spelling of 12651628544621 in words is "twelve trillion, six hundred fifty-one billion, six hundred twenty-eight million, five hundred forty-four thousand, six hundred twenty-one".