7216388659 has 2 divisors, whose sum is σ = 7216388660. Its totient is φ = 7216388658.

The previous prime is 7216388629. The next prime is 7216388671. The reversal of 7216388659 is 9568836127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7216388659 - 2¹⁹ = 7215864371 is a prime.

It is not a weakly prime, because it can be changed into another prime (7216388629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608194329 + 3608194330.

It is an arithmetic number, because the mean of its divisors is an integer number (3608194330).

Almost surely, 2^7216388659 is an apocalyptic number.

7216388659 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216388659 is an equidigital number, since it uses as much as digits as its factorization.

7216388659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 55.

The square root of 7216388659 is about 84949.3299502709. The cubic root of 7216388659 is about 1932.4427586503.

The spelling of 7216388659 in words is "seven billion, two hundred sixteen million, three hundred eighty-eight thousand, six hundred fifty-nine".