12620312600 has 72 divisors (see below), whose sum is σ = 34132820940. Its totient is φ = 4326960960.

The previous prime is 12620312587. The next prime is 12620312603. The reversal of 12620312600 is 621302621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620312603) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 634094 + ... + 653693.

Almost surely, 2^12620312600 is an apocalyptic number.

12620312600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12620312600 is an abundant number, since it is smaller than the sum of its proper divisors (21512508340).

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

12620312600 is a wasteful number, since it uses less digits than its factorization.

12620312600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287817 (or 1287801 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The spelling of 12620312600 in words is "twelve billion, six hundred twenty million, three hundred twelve thousand, six hundred".