89773437798 has 72 divisors (see below), whose sum is σ = 213911423544. Its totient is φ = 27189803520.

The previous prime is 89773437779. The next prime is 89773437799.

89773437798 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89773437799) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4592361 + ... + 4611867.

Almost surely, 2^89773437798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89773437798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106955711772).

89773437798 is an abundant number, since it is smaller than the sum of its proper divisors (124137985746).

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

89773437798 is a wasteful number, since it uses less digits than its factorization.

89773437798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21650 (or 21636 counting only the distinct ones).

The product of its digits is 448084224, while the sum is 72.

The spelling of 89773437798 in words is "eighty-nine billion, seven hundred seventy-three million, four hundred thirty-seven thousand, seven hundred ninety-eight".