7263268666 has 8 divisors (see below), whose sum is σ = 11535779700. Its totient is φ = 3418008768.

The previous prime is 7263268637. The next prime is 7263268673. The reversal of 7263268666 is 6668623627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5673253041 + 1590015625 = 75321^2 + 39875^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 106812741 + ... + 106812808.

Almost surely, 2^7263268666 is an apocalyptic number.

7263268666 is a deficient number, since it is larger than the sum of its proper divisors (4272511034).

7263268666 is a wasteful number, since it uses less digits than its factorization.

7263268666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213625568.

The product of its digits is 5225472, while the sum is 52.

The square root of 7263268666 is about 85224.8125019938. The cubic root of 7263268666 is about 1936.6183218749.

The spelling of 7263268666 in words is "seven billion, two hundred sixty-three million, two hundred sixty-eight thousand, six hundred sixty-six".