89999999998 has 8 divisors (see below), whose sum is σ = 135008657280. Its totient is φ = 44997114240.

The previous prime is 89999999993. The next prime is 90000000019.

89999999998 is nontrivially palindromic in base 10.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89999999993) 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, 1403683 + ... + 1466398.

It is an arithmetic number, because the mean of its divisors is an integer number (16876082160).

Almost surely, 2^89999999998 is an apocalyptic number.

89999999998 is a deficient number, since it is larger than the sum of its proper divisors (45008657282).

89999999998 is a wasteful number, since it uses less digits than its factorization.

89999999998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885762.

The product of its digits is 24794911296, while the sum is 97.

The spelling of 89999999998 in words is "eighty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-eight".