2188841923 has 2 divisors, whose sum is σ = 2188841924. Its totient is φ = 2188841922.

The previous prime is 2188841899. The next prime is 2188841929. The reversal of 2188841923 is 3291488812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2188841923 - 2⁵ = 2188841891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2188841929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094420961 + 1094420962.

It is an arithmetic number, because the mean of its divisors is an integer number (1094420962).

Almost surely, 2^2188841923 is an apocalyptic number.

2188841923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2188841923 is an equidigital number, since it uses as much as digits as its factorization.

2188841923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 46.

The square root of 2188841923 is about 46785.0608955466. The cubic root of 2188841923 is about 1298.3889160503.

The spelling of 2188841923 in words is "two billion, one hundred eighty-eight million, eight hundred forty-one thousand, nine hundred twenty-three".