89740534788 has 72 divisors (see below), whose sum is σ = 230931844416. Its totient is φ = 29376043200.

The previous prime is 89740534769. The next prime is 89740534811. The reversal of 89740534788 is 88743504798.

89740534788 is a `hidden beast` number, since 8 + 97 + 4 + 0 + 534 + 7 + 8 + 8 = 666.

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 23 ways as a sum of consecutive naturals, for example, 1353295 + ... + 1418057.

It is an arithmetic number, because the mean of its divisors is an integer number (3207386728).

Almost surely, 2^89740534788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89740534788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115465922208).

89740534788 is an abundant number, since it is smaller than the sum of its proper divisors (141191309628).

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

89740534788 is a wasteful number, since it uses less digits than its factorization.

89740534788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65465 (or 65460 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 63.

The spelling of 89740534788 in words is "eighty-nine billion, seven hundred forty million, five hundred thirty-four thousand, seven hundred eighty-eight".