7211440591 has 2 divisors, whose sum is σ = 7211440592. Its totient is φ = 7211440590.

The previous prime is 7211440573. The next prime is 7211440657. The reversal of 7211440591 is 1950441127.

7211440591 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7211440591 - 2⁷ = 7211440463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7211440571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605720295 + 3605720296.

It is an arithmetic number, because the mean of its divisors is an integer number (3605720296).

Almost surely, 2^7211440591 is an apocalyptic number.

7211440591 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211440591 is an equidigital number, since it uses as much as digits as its factorization.

7211440591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 7211440591 is about 84920.2013127619. The cubic root of 7211440591 is about 1932.0009843830. Note that the first 3 decimals are identical.

The spelling of 7211440591 in words is "seven billion, two hundred eleven million, four hundred forty thousand, five hundred ninety-one".