2081923867 has 8 divisors (see below), whose sum is σ = 2196853920. Its totient is φ = 1969028160.

The previous prime is 2081923861. The next prime is 2081923903. The reversal of 2081923867 is 7683291802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2081923867 - 2¹¹ = 2081921819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081923861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506484 + ... + 510577.

It is an arithmetic number, because the mean of its divisors is an integer number (274606740).

Almost surely, 2^2081923867 is an apocalyptic number.

2081923867 is a deficient number, since it is larger than the sum of its proper divisors (114930053).

2081923867 is a wasteful number, since it uses less digits than its factorization.

2081923867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017173.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 2081923867 is about 45628.1039163365. The cubic root of 2081923867 is about 1276.8942990525.

The spelling of 2081923867 in words is "two billion, eighty-one million, nine hundred twenty-three thousand, eight hundred sixty-seven".