89921868159 has 8 divisors (see below), whose sum is σ = 119992753840. Its totient is φ = 59899447296.

The previous prime is 89921868133. The next prime is 89921868161. The reversal of 89921868159 is 95186812998.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89921868159 - 2⁷ = 89921868031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 89921868159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89921868109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12111874 + ... + 12119295.

It is an arithmetic number, because the mean of its divisors is an integer number (14999094230).

Almost surely, 2^89921868159 is an apocalyptic number.

89921868159 is a deficient number, since it is larger than the sum of its proper divisors (30070885681).

89921868159 is a wasteful number, since it uses less digits than its factorization.

89921868159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24232409.

The product of its digits is 22394880, while the sum is 66.

The spelling of 89921868159 in words is "eighty-nine billion, nine hundred twenty-one million, eight hundred sixty-eight thousand, one hundred fifty-nine".