2278422823 has 2 divisors, whose sum is σ = 2278422824. Its totient is φ = 2278422822.

The previous prime is 2278422763. The next prime is 2278422847. The reversal of 2278422823 is 3282248722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2278422823 - 2¹³ = 2278414631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2278422893) 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 as a sum of consecutive naturals, namely, 1139211411 + 1139211412.

It is an arithmetic number, because the mean of its divisors is an integer number (1139211412).

Almost surely, 2^2278422823 is an apocalyptic number.

2278422823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2278422823 is an equidigital number, since it uses as much as digits as its factorization.

2278422823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172032, while the sum is 40.

The square root of 2278422823 is about 47732.8275194336. The cubic root of 2278422823 is about 1315.8653189391.

The spelling of 2278422823 in words is "two billion, two hundred seventy-eight million, four hundred twenty-two thousand, eight hundred twenty-three".