84132408091 has 2 divisors, whose sum is σ = 84132408092. Its totient is φ = 84132408090.

The previous prime is 84132408071. The next prime is 84132408137. The reversal of 84132408091 is 19080423148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84132408091 - 2²⁷ = 83998190363 is a prime.

It is not a weakly prime, because it can be changed into another prime (84132408001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42066204045 + 42066204046.

It is an arithmetic number, because the mean of its divisors is an integer number (42066204046).

Almost surely, 2^84132408091 is an apocalyptic number.

84132408091 is a deficient number, since it is larger than the sum of its proper divisors (1).

84132408091 is an equidigital number, since it uses as much as digits as its factorization.

84132408091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 84132408091 in words is "eighty-four billion, one hundred thirty-two million, four hundred eight thousand, ninety-one".