89018949840 has 160 divisors (see below), whose sum is σ = 290314454400. Its totient is φ = 22531246080.

The previous prime is 89018949839. The next prime is 89018949857. The reversal of 89018949840 is 4894981098.

It is a hoax number, since the sum of its digits (60) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302250 + ... + 519030.

It is an arithmetic number, because the mean of its divisors is an integer number (1814465340).

Almost surely, 2^89018949840 is an apocalyptic number.

89018949840 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 89018949840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145157227200).

89018949840 is an abundant number, since it is smaller than the sum of its proper divisors (201295504560).

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

89018949840 is a wasteful number, since it uses less digits than its factorization.

89018949840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216885 (or 216879 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 89018949840 in words is "eighty-nine billion, eighteen million, nine hundred forty-nine thousand, eight hundred forty".