2684705811 has 8 divisors (see below), whose sum is σ = 3592915920. Its totient is φ = 1783149792.

The previous prime is 2684705783. The next prime is 2684705869. The reversal of 2684705811 is 1185074862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2684705811 - 2⁹ = 2684705299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2684705411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1662580 + ... + 1664193.

It is an arithmetic number, because the mean of its divisors is an integer number (449114490).

Almost surely, 2^2684705811 is an apocalyptic number.

2684705811 is a deficient number, since it is larger than the sum of its proper divisors (908210109).

2684705811 is a wasteful number, since it uses less digits than its factorization.

2684705811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327045.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 2684705811 is about 51814.1468230444. The cubic root of 2684705811 is about 1389.8424352564.

The spelling of 2684705811 in words is "two billion, six hundred eighty-four million, seven hundred five thousand, eight hundred eleven".