2082805919 has 4 divisors (see below), whose sum is σ = 2082899280. Its totient is φ = 2082712560.

The previous prime is 2082805909. The next prime is 2082805939. The reversal of 2082805919 is 9195082802.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9195082802 = 2 ⋅4597541401.

It is a cyclic number.

It is not a de Polignac number, because 2082805919 - 2¹⁶ = 2082740383 is a prime.

It is a super-2 number, since 2×2082805919² = 8676160992442869122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2082805919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2082805909) 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, 8627 + ... + 65115.

It is an arithmetic number, because the mean of its divisors is an integer number (520724820).

Almost surely, 2^2082805919 is an apocalyptic number.

2082805919 is a deficient number, since it is larger than the sum of its proper divisors (93361).

2082805919 is an equidigital number, since it uses as much as digits as its factorization.

2082805919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93360.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 2082805919 is about 45637.7685585086. The cubic root of 2082805919 is about 1277.0746015389.

The spelling of 2082805919 in words is "two billion, eighty-two million, eight hundred five thousand, nine hundred nineteen".