2064991833 has 8 divisors (see below), whose sum is σ = 3059247200. Its totient is φ = 1376661204.

The previous prime is 2064991829. The next prime is 2064991843. The reversal of 2064991833 is 3381994602.

It is a happy number.

It is not a de Polignac number, because 2064991833 - 2² = 2064991829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2064991813) 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, 38240563 + ... + 38240616.

It is an arithmetic number, because the mean of its divisors is an integer number (382405900).

Almost surely, 2^2064991833 is an apocalyptic number.

It is an amenable number.

2064991833 is a deficient number, since it is larger than the sum of its proper divisors (994255367).

2064991833 is an equidigital number, since it uses as much as digits as its factorization.

2064991833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76481188 (or 76481182 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 2064991833 is about 45442.1812086524. The cubic root of 2064991833 is about 1273.4232633794.

It can be divided in two parts, 20649918 and 33, that added together give a triangular number (20649951 = T₆₄₂₆).

The spelling of 2064991833 in words is "two billion, sixty-four million, nine hundred ninety-one thousand, eight hundred thirty-three".