12904565500 has 48 divisors (see below), whose sum is σ = 28871021088. Its totient is φ = 5035920000.

The previous prime is 12904565477. The next prime is 12904565501. The reversal of 12904565500 is 556540921.

It is a self number, because there is not a number n which added to its sum of digits gives 12904565500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12904565501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294246 + ... + 335245.

It is an arithmetic number, because the mean of its divisors is an integer number (601479606).

Almost surely, 2^12904565500 is an apocalyptic number.

12904565500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12904565500 is an abundant number, since it is smaller than the sum of its proper divisors (15966455588).

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

12904565500 is a wasteful number, since it uses less digits than its factorization.

12904565500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629551 (or 629539 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 12904565500 in words is "twelve billion, nine hundred four million, five hundred sixty-five thousand, five hundred".