2128549600 has 72 divisors (see below), whose sum is σ = 5502022848. Its totient is φ = 801331200.

The previous prime is 2128549597. The next prime is 2128549639. The reversal of 2128549600 is 69458212.

It is a self number, because there is not a number n which added to its sum of digits gives 2128549600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64656 + ... + 91855.

It is an arithmetic number, because the mean of its divisors is an integer number (76416984).

Almost surely, 2^2128549600 is an apocalyptic number.

2128549600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2128549600 is an abundant number, since it is smaller than the sum of its proper divisors (3373473248).

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

2128549600 is a wasteful number, since it uses less digits than its factorization.

2128549600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156548 (or 156535 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2128549600 is about 46136.2070395909. The cubic root of 2128549600 is about 1286.3562419110.

The spelling of 2128549600 in words is "two billion, one hundred twenty-eight million, five hundred forty-nine thousand, six hundred".