89289697788 has 216 divisors, whose sum is σ = 253970126592. Its totient is φ = 27412390656.

The previous prime is 89289697729. The next prime is 89289697811. The reversal of 89289697788 is 88779698298.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13199295 + ... + 13206057.

Almost surely, 2^89289697788 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 89289697788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126985063296).

89289697788 is an abundant number, since it is smaller than the sum of its proper divisors (164680428804).

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

89289697788 is a wasteful number, since it uses less digits than its factorization.

89289697788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863 (or 6832 counting only the distinct ones).

The product of its digits is 1755758592, while the sum is 81.

The spelling of 89289697788 in words is "eighty-nine billion, two hundred eighty-nine million, six hundred ninety-seven thousand, seven hundred eighty-eight".