1089773168 has 80 divisors (see below), whose sum is σ = 2447280864. Its totient is φ = 464609280.

The previous prime is 1089773147. The next prime is 1089773183. The reversal of 1089773168 is 8613779801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366946 + ... + 1367742.

Almost surely, 2^1089773168 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 1089773168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223640432).

1089773168 is an abundant number, since it is smaller than the sum of its proper divisors (1357507696).

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

1089773168 is a wasteful number, since it uses less digits than its factorization.

1089773168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 1089773168 is about 33011.7125881103. The cubic root of 1089773168 is about 1029.0710724922.

The spelling of 1089773168 in words is "one billion, eighty-nine million, seven hundred seventy-three thousand, one hundred sixty-eight".