84289911825 has 144 divisors (see below), whose sum is σ = 170839065600. Its totient is φ = 35854030080.

The previous prime is 84289911817. The next prime is 84289911833. The reversal of 84289911825 is 52811998248.

It is an interprime number because it is at equal distance from previous prime (84289911817) and next prime (84289911833).

It is not a de Polignac number, because 84289911825 - 2³ = 84289911817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16528126 + ... + 16533224.

It is an arithmetic number, because the mean of its divisors is an integer number (1186382400).

Almost surely, 2^84289911825 is an apocalyptic number.

It is an amenable number.

84289911825 is an abundant number, since it is smaller than the sum of its proper divisors (86549153775).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84289911825 is a wasteful number, since it uses less digits than its factorization.

84289911825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216 (or 5174 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 57.

The spelling of 84289911825 in words is "eighty-four billion, two hundred eighty-nine million, nine hundred eleven thousand, eight hundred twenty-five".