2684081690 has 16 divisors (see below), whose sum is σ = 4913235360. Its totient is φ = 1055435280.

The previous prime is 2684081681. The next prime is 2684081693. The reversal of 2684081690 is 961804862.

It is a happy number.

It is a super-2 number, since 2×2684081690² = 14408589037186512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2684081693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274056 + ... + 2275235.

It is an arithmetic number, because the mean of its divisors is an integer number (307077210).

Almost surely, 2^2684081690 is an apocalyptic number.

2684081690 is a deficient number, since it is larger than the sum of its proper divisors (2229153670).

2684081690 is a wasteful number, since it uses less digits than its factorization.

2684081690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4549357.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 2684081690 is about 51808.1237838237. The cubic root of 2684081690 is about 1389.7347267354.

The spelling of 2684081690 in words is "two billion, six hundred eighty-four million, eighty-one thousand, six hundred ninety".