2081819319 has 16 divisors (see below), whose sum is σ = 2857615200. Its totient is φ = 1347131520.

The previous prime is 2081819287. The next prime is 2081819357. The reversal of 2081819319 is 9139181802.

2081819319 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2081819319 - 2⁵ = 2081819287 is a prime.

It is a super-2 number, since 2×2081819319² = 8667943353923247522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081819359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24457 + ... + 69005.

It is an arithmetic number, because the mean of its divisors is an integer number (178600950).

Almost surely, 2^2081819319 is an apocalyptic number.

2081819319 is a deficient number, since it is larger than the sum of its proper divisors (775795881).

2081819319 is a wasteful number, since it uses less digits than its factorization.

2081819319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45010.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 2081819319 is about 45626.9582483864. The cubic root of 2081819319 is about 1276.8729247550.

The spelling of 2081819319 in words is "two billion, eighty-one million, eight hundred nineteen thousand, three hundred nineteen".