84165600859 has 2 divisors, whose sum is σ = 84165600860. Its totient is φ = 84165600858.

The previous prime is 84165600851. The next prime is 84165600863. The reversal of 84165600859 is 95800656148.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84165600859 - 2³ = 84165600851 is a prime.

It is not a weakly prime, because it can be changed into another prime (84165600851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42082800429 + 42082800430.

It is an arithmetic number, because the mean of its divisors is an integer number (42082800430).

Almost surely, 2^84165600859 is an apocalyptic number.

84165600859 is a deficient number, since it is larger than the sum of its proper divisors (1).

84165600859 is an equidigital number, since it uses as much as digits as its factorization.

84165600859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 84165600859 in words is "eighty-four billion, one hundred sixty-five million, six hundred thousand, eight hundred fifty-nine".