12626387500 has 72 divisors (see below), whose sum is σ = 27792377424. Its totient is φ = 5018760000.

The previous prime is 12626387497. The next prime is 12626387503. The reversal of 12626387500 is 578362621.

It is an interprime number because it is at equal distance from previous prime (12626387497) and next prime (12626387503).

It is a super-2 number, since 2×12626387500² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12626387503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2034402 + ... + 2040598.

It is an arithmetic number, because the mean of its divisors is an integer number (386005242).

Almost surely, 2^12626387500 is an apocalyptic number.

12626387500 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 12626387500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13896188712).

12626387500 is an abundant number, since it is smaller than the sum of its proper divisors (15165989924).

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

12626387500 is an equidigital number, since it uses as much as digits as its factorization.

12626387500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6389 (or 6367 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12626387500 in words is "twelve billion, six hundred twenty-six million, three hundred eighty-seven thousand, five hundred".