7668998667 has 12 divisors (see below), whose sum is σ = 12084482904. Its totient is φ = 4647877920.

The previous prime is 7668998663. The next prime is 7668998677.

7668998667 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7668998667 - 2² = 7668998663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7668998595 and 7668998604.

It is not an unprimeable number, because it can be changed into a prime (7668998663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38732218 + ... + 38732415.

It is an arithmetic number, because the mean of its divisors is an integer number (1007040242).

Almost surely, 2^7668998667 is an apocalyptic number.

7668998667 is a deficient number, since it is larger than the sum of its proper divisors (4415484237).

7668998667 is a wasteful number, since it uses less digits than its factorization.

7668998667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77464650 (or 77464647 counting only the distinct ones).

The product of its digits is 329204736, while the sum is 72.

The square root of 7668998667 is about 87572.8192249170. The cubic root of 7668998667 is about 1972.0271391299.

The spelling of 7668998667 in words is "seven billion, six hundred sixty-eight million, nine hundred ninety-eight thousand, six hundred sixty-seven".