12947015500 has 24 divisors (see below), whose sum is σ = 28276282944. Its totient is φ = 5178806000.

The previous prime is 12947015489. The next prime is 12947015503. The reversal of 12947015500 is 551074921.

12947015500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12947015503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12946516 + ... + 12947515.

It is an arithmetic number, because the mean of its divisors is an integer number (1178178456).

Almost surely, 2^12947015500 is an apocalyptic number.

12947015500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12947015500 is an abundant number, since it is smaller than the sum of its proper divisors (15329267444).

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

12947015500 is a wasteful number, since it uses less digits than its factorization.

12947015500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25894050 (or 25894038 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 12947015500 in words is "twelve billion, nine hundred forty-seven million, fifteen thousand, five hundred".