2161834794 has 24 divisors (see below), whose sum is σ = 5353115040. Its totient is φ = 617667048.

The previous prime is 2161834751. The next prime is 2161834811. The reversal of 2161834794 is 4974381612.

2161834794 is a `hidden beast` number, since 21 + 618 + 3 + 4 + 7 + 9 + 4 = 666.

2161834794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8578584 + ... + 8578835.

It is an arithmetic number, because the mean of its divisors is an integer number (223046460).

Almost surely, 2^2161834794 is an apocalyptic number.

2161834794 is an abundant number, since it is smaller than the sum of its proper divisors (3191280246).

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

2161834794 is a wasteful number, since it uses less digits than its factorization.

2161834794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17157434 (or 17157431 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2161834794 is about 46495.5352050065. The cubic root of 2161834794 is about 1293.0267237511.

The spelling of 2161834794 in words is "two billion, one hundred sixty-one million, eight hundred thirty-four thousand, seven hundred ninety-four".