2356668889 has 4 divisors (see below), whose sum is σ = 2414148660. Its totient is φ = 2299189120.

The previous prime is 2356668871. The next prime is 2356668893. The reversal of 2356668889 is 9888666532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98803600 + 2257865289 = 9940^2 + 47517^2 .

It is a cyclic number.

It is not a de Polignac number, because 2356668889 - 2⁷ = 2356668761 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2356668989) 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 3 ways as a sum of consecutive naturals, for example, 28739824 + ... + 28739905.

It is an arithmetic number, because the mean of its divisors is an integer number (603537165).

Almost surely, 2^2356668889 is an apocalyptic number.

It is an amenable number.

2356668889 is a deficient number, since it is larger than the sum of its proper divisors (57479771).

2356668889 is an equidigital number, since it uses as much as digits as its factorization.

2356668889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57479770.

The product of its digits is 29859840, while the sum is 61.

The square root of 2356668889 is about 48545.5341818380. The cubic root of 2356668889 is about 1330.7593396915.

The spelling of 2356668889 in words is "two billion, three hundred fifty-six million, six hundred sixty-eight thousand, eight hundred eighty-nine".