2291119866 has 24 divisors (see below), whose sum is σ = 5673249504. Its totient is φ = 654605640.

The previous prime is 2291119837. The next prime is 2291119879. The reversal of 2291119866 is 6689111922.

It is a Curzon number.

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, 9091620 + ... + 9091871.

It is an arithmetic number, because the mean of its divisors is an integer number (236385396).

Almost surely, 2^2291119866 is an apocalyptic number.

2291119866 is an abundant number, since it is smaller than the sum of its proper divisors (3382129638).

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

2291119866 is a wasteful number, since it uses less digits than its factorization.

2291119866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18183506 (or 18183503 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 2291119866 is about 47865.6439004010. The cubic root of 2291119866 is about 1318.3051146366.

The spelling of 2291119866 in words is "two billion, two hundred ninety-one million, one hundred nineteen thousand, eight hundred sixty-six".