2278566964 has 24 divisors (see below), whose sum is σ = 4130670600. Its totient is φ = 1099000320.

The previous prime is 2278566959. The next prime is 2278566973. The reversal of 2278566964 is 4696658722.

It can be written as a sum of positive squares in 4 ways, for example, as 4040100 + 2274526864 = 2010^2 + 47692^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63459 + ... + 92650.

It is an arithmetic number, because the mean of its divisors is an integer number (172111275).

Almost surely, 2^2278566964 is an apocalyptic number.

It is an amenable number.

2278566964 is a deficient number, since it is larger than the sum of its proper divisors (1852103636).

2278566964 is a wasteful number, since it uses less digits than its factorization.

2278566964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156243 (or 156241 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The square root of 2278566964 is about 47734.3373683976. The cubic root of 2278566964 is about 1315.8930671020.

The spelling of 2278566964 in words is "two billion, two hundred seventy-eight million, five hundred sixty-six thousand, nine hundred sixty-four".