12620404500 has 192 divisors, whose sum is σ = 40493875968. Its totient is φ = 3028800000.

The previous prime is 12620404477. The next prime is 12620404507. The reversal of 12620404500 is 540402621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12620404507) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1662714 + ... + 1670286.

It is an arithmetic number, because the mean of its divisors is an integer number (210905604).

Almost surely, 2^12620404500 is an apocalyptic number.

12620404500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12620404500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20246937984).

12620404500 is an abundant number, since it is smaller than the sum of its proper divisors (27873471468).

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

12620404500 is a wasteful number, since it uses less digits than its factorization.

12620404500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7707 (or 7695 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The spelling of 12620404500 in words is "twelve billion, six hundred twenty million, four hundred four thousand, five hundred".