89612318843 has 4 divisors (see below), whose sum is σ = 90619198920. Its totient is φ = 88605438768.

The previous prime is 89612318837. The next prime is 89612318897. The reversal of 89612318843 is 34881321698.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34881321698 = 2 ⋅17440660849.

It is a cyclic number.

It is not a de Polignac number, because 89612318843 - 2¹² = 89612314747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89612318813) 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, 503439905 + ... + 503440082.

It is an arithmetic number, because the mean of its divisors is an integer number (22654799730).

Almost surely, 2^89612318843 is an apocalyptic number.

89612318843 is a deficient number, since it is larger than the sum of its proper divisors (1006880077).

89612318843 is a wasteful number, since it uses less digits than its factorization.

89612318843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006880076.

The product of its digits is 1990656, while the sum is 53.

The spelling of 89612318843 in words is "eighty-nine billion, six hundred twelve million, three hundred eighteen thousand, eight hundred forty-three".