89814995999 has 4 divisors (see below), whose sum is σ = 89931186936. Its totient is φ = 89698805064.

The previous prime is 89814995947. The next prime is 89814996017. The reversal of 89814995999 is 99959941898.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99959941898 = 2 ⋅49979970949.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89814995999 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 (89814995099) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 58094309 + ... + 58095854.

It is an arithmetic number, because the mean of its divisors is an integer number (22482796734).

Almost surely, 2^89814995999 is an apocalyptic number.

89814995999 is a deficient number, since it is larger than the sum of its proper divisors (116190937).

89814995999 is a wasteful number, since it uses less digits than its factorization.

89814995999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116190936.

The product of its digits is 680244480, while the sum is 80.

The spelling of 89814995999 in words is "eighty-nine billion, eight hundred fourteen million, nine hundred ninety-five thousand, nine hundred ninety-nine".