2266672778 has 8 divisors (see below), whose sum is σ = 3422526240. Its totient is φ = 1125830700.

The previous prime is 2266672769. The next prime is 2266672829. The reversal of 2266672778 is 8772766622.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3752468 + ... + 3753071.

It is an arithmetic number, because the mean of its divisors is an integer number (427815780).

Almost surely, 2^2266672778 is an apocalyptic number.

2266672778 is a deficient number, since it is larger than the sum of its proper divisors (1155853462).

2266672778 is a wasteful number, since it uses less digits than its factorization.

2266672778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505692.

The product of its digits is 4741632, while the sum is 53.

The square root of 2266672778 is about 47609.5870387467. The cubic root of 2266672778 is about 1313.5994047374.

The spelling of 2266672778 in words is "two billion, two hundred sixty-six million, six hundred seventy-two thousand, seven hundred seventy-eight".