2091954633 has 8 divisors (see below), whose sum is σ = 2792253408. Its totient is φ = 1393146144.

The previous prime is 2091954629. The next prime is 2091954677. The reversal of 2091954633 is 3364591902.

It is a happy number.

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

It is not a de Polignac number, because 2091954633 - 2² = 2091954629 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2091154633) 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, 369291 + ... + 374912.

It is an arithmetic number, because the mean of its divisors is an integer number (349031676).

Almost surely, 2^2091954633 is an apocalyptic number.

It is an amenable number.

2091954633 is a deficient number, since it is larger than the sum of its proper divisors (700298775).

2091954633 is an equidigital number, since it uses as much as digits as its factorization.

2091954633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745143.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 2091954633 is about 45737.8905613278. The cubic root of 2091954633 is about 1278.9417182491.

The spelling of 2091954633 in words is "two billion, ninety-one million, nine hundred fifty-four thousand, six hundred thirty-three".