989007817616 has 240 divisors, whose sum is σ = 2515134806784. Its totient is φ = 367613116416.

The previous prime is 989007817583. The next prime is 989007817619. The reversal of 989007817616 is 616718700989.

989007817616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (989007817619) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216552965 + ... + 216557531.

Almost surely, 2^989007817616 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 989007817616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257567403392).

989007817616 is an abundant number, since it is smaller than the sum of its proper divisors (1526126989168).

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

989007817616 is a wasteful number, since it uses less digits than its factorization.

989007817616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298 (or 5279 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 62.

The spelling of 989007817616 in words is "nine hundred eighty-nine billion, seven million, eight hundred seventeen thousand, six hundred sixteen".