7122306866 has 4 divisors (see below), whose sum is σ = 10683460302. Its totient is φ = 3561153432.

The previous prime is 7122306839. The next prime is 7122306871. The reversal of 7122306866 is 6686032217.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5888260225 + 1234046641 = 76735^2 + 35129^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1780576715 + ... + 1780576718.

Almost surely, 2^7122306866 is an apocalyptic number.

7122306866 is a deficient number, since it is larger than the sum of its proper divisors (3561153436).

7122306866 is a wasteful number, since it uses less digits than its factorization.

7122306866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561153435.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 7122306866 is about 84393.7608238903. The cubic root of 7122306866 is about 1924.0080899567.

The spelling of 7122306866 in words is "seven billion, one hundred twenty-two million, three hundred six thousand, eight hundred sixty-six".