85000822128 has 60 divisors (see below), whose sum is σ = 246087162360. Its totient is φ = 27356585088.

The previous prime is 85000822121. The next prime is 85000822163. The reversal of 85000822128 is 82122800058.

It is a happy number.

85000822128 is a `hidden beast` number, since 8 + 500 + 0 + 8 + 22 + 128 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 85000822092 and 85000822101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85000822121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10173126 + ... + 10181477.

It is an arithmetic number, because the mean of its divisors is an integer number (4101452706).

Almost surely, 2^85000822128 is an apocalyptic number.

It is an amenable number.

85000822128 is an abundant number, since it is smaller than the sum of its proper divisors (161086340232).

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

85000822128 is a wasteful number, since it uses less digits than its factorization.

85000822128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20354646 (or 20354637 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The spelling of 85000822128 in words is "eighty-five billion, eight hundred twenty-two thousand, one hundred twenty-eight".