89163723280 has 160 divisors (see below), whose sum is σ = 216211590144. Its totient is φ = 34169845248.

The previous prime is 89163723277. The next prime is 89163723293. The reversal of 89163723280 is 8232736198.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 65225157 + ... + 65226523.

Almost surely, 2^89163723280 is an apocalyptic number.

89163723280 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 89163723280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108105795072).

89163723280 is an abundant number, since it is smaller than the sum of its proper divisors (127047866864).

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

89163723280 is a wasteful number, since it uses less digits than its factorization.

89163723280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 89163723280 in words is "eighty-nine billion, one hundred sixty-three million, seven hundred twenty-three thousand, two hundred eighty".