2199978285 has 16 divisors (see below), whose sum is σ = 3525685056. Its totient is φ = 1171415168.

The previous prime is 2199978281. The next prime is 2199978293. The reversal of 2199978285 is 5828799912.

It is a cyclic number.

It is not a de Polignac number, because 2199978285 - 2² = 2199978281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199978281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109599 + ... + 128108.

It is an arithmetic number, because the mean of its divisors is an integer number (220355316).

Almost surely, 2^2199978285 is an apocalyptic number.

It is an amenable number.

2199978285 is a deficient number, since it is larger than the sum of its proper divisors (1325706771).

2199978285 is a wasteful number, since it uses less digits than its factorization.

2199978285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238332.

The product of its digits is 6531840, while the sum is 60.

The square root of 2199978285 is about 46903.9261149853. The cubic root of 2199978285 is about 1300.5871676944.

The spelling of 2199978285 in words is "two billion, one hundred ninety-nine million, nine hundred seventy-eight thousand, two hundred eighty-five".