89268539788921 has 4 divisors (see below), whose sum is σ = 89268775734132. Its totient is φ = 89268303843712.

The previous prime is 89268539788871. The next prime is 89268539788931. The reversal of 89268539788921 is 12988793586298.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28556080876521 + 60712458912400 = 5343789^2 + 7791820^2 .

It is a cyclic number.

It is not a de Polignac number, because 89268539788921 - 2⁷ = 89268539788793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89268539788931) 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 3 ways as a sum of consecutive naturals, for example, 117404176 + ... + 118162081.

It is an arithmetic number, because the mean of its divisors is an integer number (22317193933533).

Almost surely, 2^{89268539788921} is an apocalyptic number.

It is an amenable number.

89268539788921 is a deficient number, since it is larger than the sum of its proper divisors (235945211).

89268539788921 is a wasteful number, since it uses less digits than its factorization.

89268539788921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235945210.

The product of its digits is 7524679680, while the sum is 85.

The spelling of 89268539788921 in words is "eighty-nine trillion, two hundred sixty-eight billion, five hundred thirty-nine million, seven hundred eighty-eight thousand, nine hundred twenty-one".