7216850689 has 2 divisors, whose sum is σ = 7216850690. Its totient is φ = 7216850688.

The previous prime is 7216850621. The next prime is 7216850701. The reversal of 7216850689 is 9860586127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6697785600 + 519065089 = 81840^2 + 22783^2 .

It is a cyclic number.

It is not a de Polignac number, because 7216850689 - 2¹³ = 7216842497 is a prime.

It is not a weakly prime, because it can be changed into another prime (7211850689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3608425344 + 3608425345.

It is an arithmetic number, because the mean of its divisors is an integer number (3608425345).

Almost surely, 2^7216850689 is an apocalyptic number.

It is an amenable number.

7216850689 is a deficient number, since it is larger than the sum of its proper divisors (1).

7216850689 is an equidigital number, since it uses as much as digits as its factorization.

7216850689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 7216850689 is about 84952.0493513841. The cubic root of 7216850689 is about 1932.4839993833.

The spelling of 7216850689 in words is "seven billion, two hundred sixteen million, eight hundred fifty thousand, six hundred eighty-nine".