12651628544624 has 80 divisors (see below), whose sum is σ = 25673762940672. Its totient is φ = 6028213238784.

The previous prime is 12651628544587. The next prime is 12651628544629. The reversal of 12651628544624 is 42644582615621.

It is a super-2 number, since 2×12651628544624² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12651628544624.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248860712 + ... + 248911544.

Almost surely, 2^{12651628544624} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12651628544624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12836881470336).

12651628544624 is an abundant number, since it is smaller than the sum of its proper divisors (13022134396048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12651628544624 is a wasteful number, since it uses less digits than its factorization.

12651628544624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53374 (or 53368 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 56.

The spelling of 12651628544624 in words is "twelve trillion, six hundred fifty-one billion, six hundred twenty-eight million, five hundred forty-four thousand, six hundred twenty-four".