82054082809 has 4 divisors (see below), whose sum is σ = 82820943504. Its totient is φ = 81287222116.

The previous prime is 82054082777. The next prime is 82054082819. The reversal of 82054082809 is 90828045028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82054082809 - 2⁵ = 82054082777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82054082819) 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, 383430187 + ... + 383430400.

It is an arithmetic number, because the mean of its divisors is an integer number (20705235876).

Almost surely, 2^82054082809 is an apocalyptic number.

It is an amenable number.

82054082809 is a deficient number, since it is larger than the sum of its proper divisors (766860695).

82054082809 is a wasteful number, since it uses less digits than its factorization.

82054082809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766860694.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 82054082809 in words is "eighty-two billion, fifty-four million, eighty-two thousand, eight hundred nine".