89443199999 has 4 divisors (see below), whose sum is σ = 90279117864. Its totient is φ = 88607282136.

The previous prime is 89443199957. The next prime is 89443200013. The reversal of 89443199999 is 99999134498.

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 89443199999 - 2²⁸ = 89174764543 is a prime.

It is a super-2 number, since 2×89443199999² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89443199099) 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, 417958772 + ... + 417958985.

It is an arithmetic number, because the mean of its divisors is an integer number (22569779466).

Almost surely, 2^89443199999 is an apocalyptic number.

89443199999 is a deficient number, since it is larger than the sum of its proper divisors (835917865).

89443199999 is a wasteful number, since it uses less digits than its factorization.

89443199999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835917864.

The product of its digits is 204073344, while the sum is 74.

The spelling of 89443199999 in words is "eighty-nine billion, four hundred forty-three million, one hundred ninety-nine thousand, nine hundred ninety-nine".