10999394884 has 27 divisors (see below), whose sum is σ = 19745316381. Its totient is φ = 5361363360.

The previous prime is 10999394873. The next prime is 10999394911. The reversal of 10999394884 is 48849399901.

The square root of 10999394884 is 104878.

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

10999394884 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., 530012484 + 10469382400 = 23022^2 + 102320^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8599357 + ... + 8600635.

Almost surely, 2^10999394884 is an apocalyptic number.

10999394884 is the 104878-th square number.

It is an amenable number.

10999394884 is a deficient number, since it is larger than the sum of its proper divisors (8745921497).

10999394884 is an frugal number, since it uses more digits than its factorization.

10999394884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 64.

Multiplying 10999394884 by its sum of digits (64), we get a square (703961272576 = 839024²).

The spelling of 10999394884 in words is "ten billion, nine hundred ninety-nine million, three hundred ninety-four thousand, eight hundred eighty-four".