2199851994 has 16 divisors (see below), whose sum is σ = 4400290368. Its totient is φ = 733186272.

The previous prime is 2199851987. The next prime is 2199852019. The reversal of 2199851994 is 4991589912.

2199851994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35739 + ... + 75345.

It is an arithmetic number, because the mean of its divisors is an integer number (275018148).

Almost surely, 2^2199851994 is an apocalyptic number.

2199851994 is an abundant number, since it is smaller than the sum of its proper divisors (2200438374).

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

2199851994 is a wasteful number, since it uses less digits than its factorization.

2199851994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48869.

The product of its digits is 2099520, while the sum is 57.

The square root of 2199851994 is about 46902.5798224362. The cubic root of 2199851994 is about 1300.5622802371.

The spelling of 2199851994 in words is "two billion, one hundred ninety-nine million, eight hundred fifty-one thousand, nine hundred ninety-four".