12899620800 has 1008 divisors, whose sum is σ = 53771986944. Its totient is φ = 2903040000.

The previous prime is 12899620793. The next prime is 12899620801. The reversal of 12899620800 is 802699821.

12899620800 is a `hidden beast` number, since 12 + 8 + 9 + 9 + 620 + 8 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899620801) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 181684765 + ... + 181684835.

Almost surely, 2^12899620800 is an apocalyptic number.

12899620800 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 12899620800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26885993472).

12899620800 is an abundant number, since it is smaller than the sum of its proper divisors (40872366144).

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

12899620800 is a wasteful number, since it uses less digits than its factorization.

12899620800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 12899620800 in words is "twelve billion, eight hundred ninety-nine million, six hundred twenty thousand, eight hundred".