85489132320 has 96 divisors (see below), whose sum is σ = 299211978240. Its totient is φ = 22797100800.

The previous prime is 85489132319. The next prime is 85489132343. The reversal of 85489132320 is 2323198458.

85489132320 is a `hidden beast` number, since 8 + 5 + 489 + 132 + 32 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9890256 + ... + 9898895.

It is an arithmetic number, because the mean of its divisors is an integer number (3116791440).

Almost surely, 2^85489132320 is an apocalyptic number.

85489132320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

85489132320 is an abundant number, since it is smaller than the sum of its proper divisors (213722845920).

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

85489132320 is a wasteful number, since it uses less digits than its factorization.

85489132320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19789175 (or 19789161 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 85489132320 in words is "eighty-five billion, four hundred eighty-nine million, one hundred thirty-two thousand, three hundred twenty".