7668402618 has 16 divisors (see below), whose sum is σ = 15400446336. Its totient is φ = 2545527360.

The previous prime is 7668402617. The next prime is 7668402629. The reversal of 7668402618 is 8162048667.

It is not an unprimeable number, because it can be changed into a prime (7668402617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650146 + ... + 2653037.

It is an arithmetic number, because the mean of its divisors is an integer number (962527896).

Almost surely, 2^7668402618 is an apocalyptic number.

7668402618 is an abundant number, since it is smaller than the sum of its proper divisors (7732043718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7668402618 is a wasteful number, since it uses less digits than its factorization.

7668402618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5303429.

The product of its (nonzero) digits is 774144, while the sum is 48.

The square root of 7668402618 is about 87569.4159966823. The cubic root of 7668402618 is about 1971.9760479202.

The spelling of 7668402618 in words is "seven billion, six hundred sixty-eight million, four hundred two thousand, six hundred eighteen".