89429478894 has 192 divisors, whose sum is σ = 246555187200. Its totient is φ = 23873584896.

The previous prime is 89429478871. The next prime is 89429478907. The reversal of 89429478894 is 49887492498.

It is a happy number.

89429478894 is a `hidden beast` number, since 89 + 429 + 47 + 8 + 89 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6245347 + ... + 6259649.

It is an arithmetic number, because the mean of its divisors is an integer number (1284141600).

Almost surely, 2^89429478894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89429478894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123277593600).

89429478894 is an abundant number, since it is smaller than the sum of its proper divisors (157125708306).

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

89429478894 is a wasteful number, since it uses less digits than its factorization.

89429478894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14484 (or 14471 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 72.

The spelling of 89429478894 in words is "eighty-nine billion, four hundred twenty-nine million, four hundred seventy-eight thousand, eight hundred ninety-four".