2199650989 has 4 divisors (see below), whose sum is σ = 2199805056. Its totient is φ = 2199496924.

The previous prime is 2199650983. The next prime is 2199650993. The reversal of 2199650989 is 9890569912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2199650989 - 2¹⁵ = 2199618221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199650983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53149 + ... + 84994.

It is an arithmetic number, because the mean of its divisors is an integer number (549951264).

Almost surely, 2^2199650989 is an apocalyptic number.

It is an amenable number.

2199650989 is a deficient number, since it is larger than the sum of its proper divisors (154067).

2199650989 is a wasteful number, since it uses less digits than its factorization.

2199650989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154066.

The product of its (nonzero) digits is 3149280, while the sum is 58.

The square root of 2199650989 is about 46900.4369809067. The cubic root of 2199650989 is about 1300.5226673473.

The spelling of 2199650989 in words is "two billion, one hundred ninety-nine million, six hundred fifty thousand, nine hundred eighty-nine".