89138662880 has 144 divisors (see below), whose sum is σ = 216452222784. Its totient is φ = 34689070080.

The previous prime is 89138662853. The next prime is 89138662883. The reversal of 89138662880 is 8826683198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89138662883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108572870 + ... + 108573690.

It is an arithmetic number, because the mean of its divisors is an integer number (1503140436).

Almost surely, 2^89138662880 is an apocalyptic number.

89138662880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89138662880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108226111392).

89138662880 is an abundant number, since it is smaller than the sum of its proper divisors (127313559904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89138662880 is a wasteful number, since it uses less digits than its factorization.

89138662880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 89138662880 in words is "eighty-nine billion, one hundred thirty-eight million, six hundred sixty-two thousand, eight hundred eighty".