12899632000 has 128 divisors (see below), whose sum is σ = 33760490400. Its totient is φ = 4888166400.

The previous prime is 12899631989. The next prime is 12899632027. The reversal of 12899632000 is 23699821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282784 + ... + 325216.

Almost surely, 2^12899632000 is an apocalyptic number.

12899632000 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 12899632000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16880245200).

12899632000 is an abundant number, since it is smaller than the sum of its proper divisors (20860858400).

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

12899632000 is an equidigital number, since it uses as much as digits as its factorization.

12899632000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42481 (or 42459 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 12899632000 in words is "twelve billion, eight hundred ninety-nine million, six hundred thirty-two thousand".