89674187440 has 80 divisors (see below), whose sum is σ = 217591207200. Its totient is φ = 34326204416.

The previous prime is 89674187401. The next prime is 89674187459. The reversal of 89674187440 is 4478147698.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-3 number, since 3×89674187440³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91131 + ... + 433189.

It is an arithmetic number, because the mean of its divisors is an integer number (2719890090).

Almost surely, 2^89674187440 is an apocalyptic number.

89674187440 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 89674187440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108795603600).

89674187440 is an abundant number, since it is smaller than the sum of its proper divisors (127917019760).

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

89674187440 is a wasteful number, since it uses less digits than its factorization.

89674187440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342214 (or 342208 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 58.

The spelling of 89674187440 in words is "eighty-nine billion, six hundred seventy-four million, one hundred eighty-seven thousand, four hundred forty".