4421969791 has 2 divisors, whose sum is σ = 4421969792. Its totient is φ = 4421969790.

The previous prime is 4421969767. The next prime is 4421969809. The reversal of 4421969791 is 1979691244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4421969791 - 2¹¹ = 4421967743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4421969191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2210984895 + 2210984896.

It is an arithmetic number, because the mean of its divisors is an integer number (2210984896).

Almost surely, 2^4421969791 is an apocalyptic number.

4421969791 is a deficient number, since it is larger than the sum of its proper divisors (1).

4421969791 is an equidigital number, since it uses as much as digits as its factorization.

4421969791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 52.

The square root of 4421969791 is about 66497.8931320384. The cubic root of 4421969791 is about 1641.3653352276.

The spelling of 4421969791 in words is "four billion, four hundred twenty-one million, nine hundred sixty-nine thousand, seven hundred ninety-one".