12621934325624 has 128 divisors (see below), whose sum is σ = 27412144986240. Its totient is φ = 5402041362432.

The previous prime is 12621934325557. The next prime is 12621934325639. The reversal of 12621934325624 is 42652343912621.

It is a super-2 number, since 2×12621934325624² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24258182 + ... + 24773034.

It is an arithmetic number, because the mean of its divisors is an integer number (214157382705).

Almost surely, 2^{12621934325624} 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 12621934325624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13706072493120).

12621934325624 is an abundant number, since it is smaller than the sum of its proper divisors (14790210660616).

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

12621934325624 is a wasteful number, since it uses less digits than its factorization.

12621934325624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515209 (or 515205 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 50.

The spelling of 12621934325624 in words is "twelve trillion, six hundred twenty-one billion, nine hundred thirty-four million, three hundred twenty-five thousand, six hundred twenty-four".