84185400059 has 2 divisors, whose sum is σ = 84185400060. Its totient is φ = 84185400058.

The previous prime is 84185400053. The next prime is 84185400097. The reversal of 84185400059 is 95000458148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84185400059 - 2⁸ = 84185399803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 84185399992 and 84185400019.

It is not a weakly prime, because it can be changed into another prime (84185400053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42092700029 + 42092700030.

It is an arithmetic number, because the mean of its divisors is an integer number (42092700030).

Almost surely, 2^84185400059 is an apocalyptic number.

84185400059 is a deficient number, since it is larger than the sum of its proper divisors (1).

84185400059 is an equidigital number, since it uses as much as digits as its factorization.

84185400059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 44.

The spelling of 84185400059 in words is "eighty-four billion, one hundred eighty-five million, four hundred thousand, fifty-nine".