2199897951 has 8 divisors (see below), whose sum is σ = 3060727680. Its totient is φ = 1402833432.

The previous prime is 2199897949. The next prime is 2199897983. The reversal of 2199897951 is 1597989912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2199897951 - 2¹ = 2199897949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199897901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15941221 + ... + 15941358.

It is an arithmetic number, because the mean of its divisors is an integer number (382590960).

Almost surely, 2^2199897951 is an apocalyptic number.

2199897951 is a deficient number, since it is larger than the sum of its proper divisors (860829729).

2199897951 is a wasteful number, since it uses less digits than its factorization.

2199897951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31882605.

The product of its digits is 3674160, while the sum is 60.

The square root of 2199897951 is about 46903.0697396237. The cubic root of 2199897951 is about 1300.5713368349.

The spelling of 2199897951 in words is "two billion, one hundred ninety-nine million, eight hundred ninety-seven thousand, nine hundred fifty-one".