89391841056 has 480 divisors, whose sum is σ = 313362137088. Its totient is φ = 24460807680.

The previous prime is 89391841031. The next prime is 89391841067. The reversal of 89391841056 is 65014819398.

89391841056 is a `hidden beast` number, since 8 + 93 + 91 + 8 + 410 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 89391840993 and 89391841011.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 57933021 + ... + 57934563.

Almost surely, 2^89391841056 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 89391841056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156681068544).

89391841056 is an abundant number, since it is smaller than the sum of its proper divisors (223970296032).

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

89391841056 is a wasteful number, since it uses less digits than its factorization.

89391841056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1689 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 54.

The spelling of 89391841056 in words is "eighty-nine billion, three hundred ninety-one million, eight hundred forty-one thousand, fifty-six".