2033780899 has 4 divisors (see below), whose sum is σ = 2034292464. Its totient is φ = 2033269336.

The previous prime is 2033780869. The next prime is 2033780909. The reversal of 2033780899 is 9980873302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2033780899 - 2¹⁹ = 2033256611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2033780869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249772 + ... + 257785.

It is an arithmetic number, because the mean of its divisors is an integer number (508573116).

Almost surely, 2^2033780899 is an apocalyptic number.

2033780899 is a deficient number, since it is larger than the sum of its proper divisors (511565).

2033780899 is an equidigital number, since it uses as much as digits as its factorization.

2033780899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511564.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 2033780899 is about 45097.4600060802. The cubic root of 2033780899 is about 1266.9750270573.

The spelling of 2033780899 in words is "two billion, thirty-three million, seven hundred eighty thousand, eight hundred ninety-nine".