2094211691 has 32 divisors (see below), whose sum is σ = 2611320768. Its totient is φ = 1650032640.

The previous prime is 2094211661. The next prime is 2094211703. The reversal of 2094211691 is 1961124902.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2094211691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2094211621) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1401941 + ... + 1403433.

It is an arithmetic number, because the mean of its divisors is an integer number (81603774).

Almost surely, 2^2094211691 is an apocalyptic number.

2094211691 is a deficient number, since it is larger than the sum of its proper divisors (517109077).

2094211691 is a wasteful number, since it uses less digits than its factorization.

2094211691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 2094211691 is about 45762.5577410179. The cubic root of 2094211691 is about 1279.4015128126.

It can be divided in two parts, 2094211 and 691, that added together give a palindrome (2094902).

The spelling of 2094211691 in words is "two billion, ninety-four million, two hundred eleven thousand, six hundred ninety-one".