89904522064 has 80 divisors (see below), whose sum is σ = 203400124416. Its totient is φ = 37699891200.

The previous prime is 89904522053. The next prime is 89904522067. The reversal of 89904522064 is 46022540998.

It is a junction number, because it is equal to n+sod(n) for n = 89904521999 and 89904522017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89904522067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270464 + ... + 1339360.

Almost surely, 2^89904522064 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 89904522064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101700062208).

89904522064 is an abundant number, since it is smaller than the sum of its proper divisors (113495602352).

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

89904522064 is a wasteful number, since it uses less digits than its factorization.

89904522064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69164 (or 69158 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 89904522064 in words is "eighty-nine billion, nine hundred four million, five hundred twenty-two thousand, sixty-four".