12538500700 has 36 divisors (see below), whose sum is σ = 29682053352. Its totient is φ = 4559454400.

The previous prime is 12538500661. The next prime is 12538500701. The reversal of 12538500700 is 700583521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12538500701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5698219 + ... + 5700418.

It is an arithmetic number, because the mean of its divisors is an integer number (824501482).

Almost surely, 2^12538500700 is an apocalyptic number.

12538500700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12538500700 is an abundant number, since it is smaller than the sum of its proper divisors (17143552652).

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

12538500700 is a wasteful number, since it uses less digits than its factorization.

12538500700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11398662 (or 11398655 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 12538500700 in words is "twelve billion, five hundred thirty-eight million, five hundred thousand, seven hundred".