89487843668 has 24 divisors (see below), whose sum is σ = 165898173672. Its totient is φ = 42090983424.

The previous prime is 89487843589. The next prime is 89487843673. The reversal of 89487843668 is 86634878498.

It can be written as a sum of positive squares in 4 ways, for example, as 12735573904 + 76752269764 = 112852^2 + 277042^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189071 + ... + 463382.

It is an arithmetic number, because the mean of its divisors is an integer number (6912423903).

Almost surely, 2^89487843668 is an apocalyptic number.

It is an amenable number.

89487843668 is a deficient number, since it is larger than the sum of its proper divisors (76410330004).

89487843668 is a wasteful number, since it uses less digits than its factorization.

89487843668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654491 (or 654489 counting only the distinct ones).

The product of its digits is 445906944, while the sum is 71.

The spelling of 89487843668 in words is "eighty-nine billion, four hundred eighty-seven million, eight hundred forty-three thousand, six hundred sixty-eight".