2211889678 has 8 divisors (see below), whose sum is σ = 3323901672. Its totient is φ = 1103922456.

The previous prime is 2211889657. The next prime is 2211889679. The reversal of 2211889678 is 8769881122.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211889679) 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, 1009825 + ... + 1012012.

It is an arithmetic number, because the mean of its divisors is an integer number (415487709).

Almost surely, 2^2211889678 is an apocalyptic number.

2211889678 is a deficient number, since it is larger than the sum of its proper divisors (1112011994).

2211889678 is a wasteful number, since it uses less digits than its factorization.

2211889678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022386.

The product of its digits is 774144, while the sum is 52.

The square root of 2211889678 is about 47030.7312084343. The cubic root of 2211889678 is about 1302.9302104381.

The spelling of 2211889678 in words is "two billion, two hundred eleven million, eight hundred eighty-nine thousand, six hundred seventy-eight".