84272212919 has 2 divisors, whose sum is σ = 84272212920. Its totient is φ = 84272212918.

The previous prime is 84272212897. The next prime is 84272212939. The reversal of 84272212919 is 91921227248.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84272212919 - 2²⁴ = 84255435703 is a prime.

It is a super-2 number, since 2×84272212919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84272212939) 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, 42136106459 + 42136106460.

It is an arithmetic number, because the mean of its divisors is an integer number (42136106460).

Almost surely, 2^84272212919 is an apocalyptic number.

84272212919 is a deficient number, since it is larger than the sum of its proper divisors (1).

84272212919 is an equidigital number, since it uses as much as digits as its factorization.

84272212919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The spelling of 84272212919 in words is "eighty-four billion, two hundred seventy-two million, two hundred twelve thousand, nine hundred nineteen".