7668346438667 has 4 divisors (see below), whose sum is σ = 7670543046696. Its totient is φ = 7666149830640.

The previous prime is 7668346438661. The next prime is 7668346438691.

7668346438667 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 7668346438667 - 2¹⁰ = 7668346437643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7668346438594 and 7668346438603.

It is not an unprimeable number, because it can be changed into a prime (7668346438661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098298778 + ... + 1098305759.

It is an arithmetic number, because the mean of its divisors is an integer number (1917635761674).

Almost surely, 2^{7668346438667} is an apocalyptic number.

7668346438667 is a deficient number, since it is larger than the sum of its proper divisors (2196608029).

7668346438667 is a wasteful number, since it uses less digits than its factorization.

7668346438667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196608028.

The product of its digits is 3511517184, while the sum is 74.

The spelling of 7668346438667 in words is "seven trillion, six hundred sixty-eight billion, three hundred forty-six million, four hundred thirty-eight thousand, six hundred sixty-seven".