2061594688 has 28 divisors (see below), whose sum is σ = 4232048940. Its totient is φ = 995251712.

The previous prime is 2061594631. The next prime is 2061594707. The reversal of 2061594688 is 8864951602.

It can be written as a sum of positive squares in 2 ways, for example, as 665227264 + 1396367424 = 25792^2 + 37368^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553531 + ... + 557242.

It is an arithmetic number, because the mean of its divisors is an integer number (151144605).

Almost surely, 2^2061594688 is an apocalyptic number.

It is an amenable number.

2061594688 is an abundant number, since it is smaller than the sum of its proper divisors (2170454252).

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

2061594688 is a wasteful number, since it uses less digits than its factorization.

2061594688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110814 (or 1110804 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 2061594688 is about 45404.7870603971. The cubic root of 2061594688 is about 1272.7245716900.

The spelling of 2061594688 in words is "two billion, sixty-one million, five hundred ninety-four thousand, six hundred eighty-eight".