2128866702600 has 384 divisors, whose sum is σ = 7243366394880. Its totient is φ = 512949888000.

The previous prime is 2128866702569. The next prime is 2128866702623. The reversal of 2128866702600 is 62076688212.

It is a self number, because there is not a number n which added to its sum of digits gives 2128866702600.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 939066667 + ... + 939068933.

It is an arithmetic number, because the mean of its divisors is an integer number (18862933320).

Almost surely, 2^{2128866702600} is an apocalyptic number.

2128866702600 is a gapful number since it is divisible by the number (20) 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 2128866702600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3621683197440).

2128866702600 is an abundant number, since it is smaller than the sum of its proper divisors (5114499692280).

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

2128866702600 is a wasteful number, since it uses less digits than its factorization.

2128866702600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101 (or 3092 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 2128866702600 in words is "two trillion, one hundred twenty-eight billion, eight hundred sixty-six million, seven hundred two thousand, six hundred".