12652512500 has 36 divisors (see below), whose sum is σ = 27675627084. Its totient is φ = 5061000000.

The previous prime is 12652512493. The next prime is 12652512517. The reversal of 12652512500 is 521525621.

It can be written as a sum of positive squares in 6 ways, for example, as 9533960164 + 3118552336 = 97642^2 + 55844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 493601 + ... + 518600.

It is an arithmetic number, because the mean of its divisors is an integer number (768767419).

Almost surely, 2^12652512500 is an apocalyptic number.

12652512500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12652512500 is an abundant number, since it is smaller than the sum of its proper divisors (15023114584).

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

12652512500 is an equidigital number, since it uses as much as digits as its factorization.

12652512500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012230 (or 1012208 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 12652512500 in words is "twelve billion, six hundred fifty-two million, five hundred twelve thousand, five hundred".