89831723085 has 64 divisors (see below), whose sum is σ = 182102376960. Its totient is φ = 41623372800.

The previous prime is 89831723029. The next prime is 89831723131. The reversal of 89831723085 is 58032713898.

89831723085 is a `hidden beast` number, since 8 + 98 + 317 + 230 + 8 + 5 = 666.

It is not a de Polignac number, because 89831723085 - 2⁸ = 89831722829 is a prime.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 1475641 + ... + 1535310.

It is an arithmetic number, because the mean of its divisors is an integer number (2845349640).

Almost surely, 2^89831723085 is an apocalyptic number.

89831723085 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

89831723085 is an abundant number, since it is smaller than the sum of its proper divisors (92270653875).

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

89831723085 is a wasteful number, since it uses less digits than its factorization.

89831723085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010995 (or 3010989 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 89831723085 in words is "eighty-nine billion, eight hundred thirty-one million, seven hundred twenty-three thousand, eighty-five".