611222273689 has 2 divisors, whose sum is σ = 611222273690. Its totient is φ = 611222273688.

The previous prime is 611222273671. The next prime is 611222273693. The reversal of 611222273689 is 986372222116.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505293505600 + 105928768089 = 710840^2 + 325467^2 .

It is a cyclic number.

It is not a de Polignac number, because 611222273689 - 2¹⁵ = 611222240921 is a prime.

It is not a weakly prime, because it can be changed into another prime (611222273609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305611136844 + 305611136845.

It is an arithmetic number, because the mean of its divisors is an integer number (305611136845).

Almost surely, 2^611222273689 is an apocalyptic number.

It is an amenable number.

611222273689 is a deficient number, since it is larger than the sum of its proper divisors (1).

611222273689 is an equidigital number, since it uses as much as digits as its factorization.

611222273689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 49.

The spelling of 611222273689 in words is "six hundred eleven billion, two hundred twenty-two million, two hundred seventy-three thousand, six hundred eighty-nine".