84227272447 has 2 divisors, whose sum is σ = 84227272448. Its totient is φ = 84227272446.

The previous prime is 84227272439. The next prime is 84227272471. The reversal of 84227272447 is 74427272248.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84227272447 - 2³ = 84227272439 is a prime.

It is a super-2 number, since 2×84227272447² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 84227272447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84227272477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42113636223 + 42113636224.

It is an arithmetic number, because the mean of its divisors is an integer number (42113636224).

Almost surely, 2^84227272447 is an apocalyptic number.

84227272447 is a deficient number, since it is larger than the sum of its proper divisors (1).

84227272447 is an equidigital number, since it uses as much as digits as its factorization.

84227272447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2809856, while the sum is 49.

The spelling of 84227272447 in words is "eighty-four billion, two hundred twenty-seven million, two hundred seventy-two thousand, four hundred forty-seven".