2081914997 has 2 divisors, whose sum is σ = 2081914998. Its totient is φ = 2081914996.

The previous prime is 2081914993. The next prime is 2081914999. The reversal of 2081914997 is 7994191802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1615959601 + 465955396 = 40199^2 + 21586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2081914997 - 2² = 2081914993 is a prime.

Together with 2081914999, 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 (2081914993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040957498 + 1040957499.

It is an arithmetic number, because the mean of its divisors is an integer number (1040957499).

Almost surely, 2^2081914997 is an apocalyptic number.

It is an amenable number.

2081914997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2081914997 is an equidigital number, since it uses as much as digits as its factorization.

2081914997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 50.

The square root of 2081914997 is about 45628.0067173660. The cubic root of 2081914997 is about 1276.8924856547.

The spelling of 2081914997 in words is "two billion, eighty-one million, nine hundred fourteen thousand, nine hundred ninety-seven".