2071919791 has 2 divisors, whose sum is σ = 2071919792. Its totient is φ = 2071919790.

The previous prime is 2071919779. The next prime is 2071919827. The reversal of 2071919791 is 1979191702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2071919791 - 2⁹ = 2071919279 is a prime.

It is a super-3 number, since 3×2071919791³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2071919701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035959895 + 1035959896.

It is an arithmetic number, because the mean of its divisors is an integer number (1035959896).

Almost surely, 2^2071919791 is an apocalyptic number.

2071919791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071919791 is an equidigital number, since it uses as much as digits as its factorization.

2071919791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 71442, while the sum is 46.

The square root of 2071919791 is about 45518.3456531540. The cubic root of 2071919791 is about 1274.8457670158.

The spelling of 2071919791 in words is "two billion, seventy-one million, nine hundred nineteen thousand, seven hundred ninety-one".