89118544999 has 4 divisors (see below), whose sum is σ = 97220230920. Its totient is φ = 81016859080.

The previous prime is 89118544897. The next prime is 89118545011. The reversal of 89118544999 is 99944581198.

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

It is a cyclic number.

It is not a de Polignac number, because 89118544999 - 2²³ = 89110156391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89118544499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4050842944 + ... + 4050842965.

It is an arithmetic number, because the mean of its divisors is an integer number (24305057730).

Almost surely, 2^89118544999 is an apocalyptic number.

89118544999 is a deficient number, since it is larger than the sum of its proper divisors (8101685921).

89118544999 is a wasteful number, since it uses less digits than its factorization.

89118544999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8101685920.

The product of its digits is 33592320, while the sum is 67.

The spelling of 89118544999 in words is "eighty-nine billion, one hundred eighteen million, five hundred forty-four thousand, nine hundred ninety-nine".