12620877824 has 78 divisors (see below), whose sum is σ = 25591059390. Its totient is φ = 6223495168.

The previous prime is 12620877781. The next prime is 12620877839. The reversal of 12620877824 is 42877802621.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 76877824 + 12544000000 = 8768^2 + 112000^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32444222 + ... + 32444610.

It is an arithmetic number, because the mean of its divisors is an integer number (328090505).

Almost surely, 2^12620877824 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 12620877824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12795529695).

12620877824 is an abundant number, since it is smaller than the sum of its proper divisors (12970181566).

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

12620877824 is an frugal number, since it uses more digits than its factorization.

12620877824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 12620877824 in words is "twelve billion, six hundred twenty million, eight hundred seventy-seven thousand, eight hundred twenty-four".