722728255771 has 2 divisors, whose sum is σ = 722728255772. Its totient is φ = 722728255770.

The previous prime is 722728255751. The next prime is 722728255819. The reversal of 722728255771 is 177552827227.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722728255771 is a prime.

It is a super-2 number, since 2×722728255771² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (722728255751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361364127885 + 361364127886.

It is an arithmetic number, because the mean of its divisors is an integer number (361364127886).

Almost surely, 2^722728255771 is an apocalyptic number.

722728255771 is a deficient number, since it is larger than the sum of its proper divisors (1).

722728255771 is an equidigital number, since it uses as much as digits as its factorization.

722728255771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7683200, while the sum is 55.

The spelling of 722728255771 in words is "seven hundred twenty-two billion, seven hundred twenty-eight million, two hundred fifty-five thousand, seven hundred seventy-one".