84088985128 has 16 divisors (see below), whose sum is σ = 157682278260. Its totient is φ = 42040377600.

The previous prime is 84088985087. The next prime is 84088985129. The reversal of 84088985128 is 82158988048.

It can be written as a sum of positive squares in 2 ways, for example, as 80486824804 + 3602160324 = 283702^2 + 60018^2 .

It is not an unprimeable number, because it can be changed into a prime (84088985129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426643 + ... + 591778.

Almost surely, 2^84088985128 is an apocalyptic number.

It is an amenable number.

84088985128 is a deficient number, since it is larger than the sum of its proper divisors (73593293132).

84088985128 is a wasteful number, since it uses less digits than its factorization.

84088985128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028748 (or 1028744 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 61.

The spelling of 84088985128 in words is "eighty-four billion, eighty-eight million, nine hundred eighty-five thousand, one hundred twenty-eight".