89644989518 has 48 divisors (see below), whose sum is σ = 159185295360. Its totient is φ = 37741347504.

The previous prime is 89644989503. The next prime is 89644989547. The reversal of 89644989518 is 81598944698.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9610805 + ... + 9620127.

It is an arithmetic number, because the mean of its divisors is an integer number (3316360320).

Almost surely, 2^89644989518 is an apocalyptic number.

89644989518 is a deficient number, since it is larger than the sum of its proper divisors (69540305842).

89644989518 is a wasteful number, since it uses less digits than its factorization.

89644989518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061 (or 11054 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 71.

The spelling of 89644989518 in words is "eighty-nine billion, six hundred forty-four million, nine hundred eighty-nine thousand, five hundred eighteen".