2128794650 has 24 divisors (see below), whose sum is σ = 3977022240. Its totient is φ = 847762160.

The previous prime is 2128794631. The next prime is 2128794691. The reversal of 2128794650 is 564978212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82430 + ... + 105129.

It is an arithmetic number, because the mean of its divisors is an integer number (165709260).

Almost surely, 2^2128794650 is an apocalyptic number.

2128794650 is a deficient number, since it is larger than the sum of its proper divisors (1848227590).

2128794650 is a wasteful number, since it uses less digits than its factorization.

2128794650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187798 (or 187793 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2128794650 is about 46138.8626864599. The cubic root of 2128794650 is about 1286.4056040841.

The spelling of 2128794650 in words is "two billion, one hundred twenty-eight million, seven hundred ninety-four thousand, six hundred fifty".