2081968079 has 2 divisors, whose sum is σ = 2081968080. Its totient is φ = 2081968078.

The previous prime is 2081968061. The next prime is 2081968081. The reversal of 2081968079 is 9708691802.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081968079 is a prime.

It is a Sophie Germain prime.

Together with 2081968081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2081968279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040984039 + 1040984040.

It is an arithmetic number, because the mean of its divisors is an integer number (1040984040).

Almost surely, 2^2081968079 is an apocalyptic number.

2081968079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081968079 is an equidigital number, since it uses as much as digits as its factorization.

2081968079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 2081968079 is about 45628.5883958730. The cubic root of 2081968079 is about 1276.9033377517.

The spelling of 2081968079 in words is "two billion, eighty-one million, nine hundred sixty-eight thousand, seventy-nine".