989109811600 has 45 divisors (see below), whose sum is σ = 2376384110977. Its totient is φ = 395635968320.

The previous prime is 989109811583. The next prime is 989109811643. The reversal of 989109811600 is 6118901989.

The square root of 989109811600 is 994540.

It is a perfect power (a square), and thus also a powerful number.

989109811600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 356079532176 + 633030279424 = 596724^2 + 795632^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19865937 + ... + 19915663.

Almost surely, 2^989109811600 is an apocalyptic number.

989109811600 is the 994540-th square number.

It is an amenable number.

989109811600 is an abundant number, since it is smaller than the sum of its proper divisors (1387274299377).

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

989109811600 is an frugal number, since it uses more digits than its factorization.

989109811600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99472 (or 49734 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 52.

The spelling of 989109811600 in words is "nine hundred eighty-nine billion, one hundred nine million, eight hundred eleven thousand, six hundred".