2133780339 has 4 divisors (see below), whose sum is σ = 2845040456. Its totient is φ = 1422520224.

The previous prime is 2133780331. The next prime is 2133780349. The reversal of 2133780339 is 9330873312.

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

It is not a de Polignac number, because 2133780339 - 2³ = 2133780331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2133780297 and 2133780306.

It is not an unprimeable number, because it can be changed into a prime (2133780331) 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, 355630054 + ... + 355630059.

It is an arithmetic number, because the mean of its divisors is an integer number (711260114).

Almost surely, 2^2133780339 is an apocalyptic number.

2133780339 is a deficient number, since it is larger than the sum of its proper divisors (711260117).

2133780339 is an equidigital number, since it uses as much as digits as its factorization.

2133780339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711260116.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 2133780339 is about 46192.8602600012. The cubic root of 2133780339 is about 1287.4090855338.

The spelling of 2133780339 in words is "two billion, one hundred thirty-three million, seven hundred eighty thousand, three hundred thirty-nine".