7663663667 has 8 divisors (see below), whose sum is σ = 8630049792. Its totient is φ = 6742225800.

The previous prime is 7663663649. The next prime is 7663663681.

7663663667 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7663663667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7663663697) 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, 11236703 + ... + 11237384.

It is an arithmetic number, because the mean of its divisors is an integer number (1078756224).

Almost surely, 2^7663663667 is an apocalyptic number.

7663663667 is a deficient number, since it is larger than the sum of its proper divisors (966386125).

7663663667 is a wasteful number, since it uses less digits than its factorization.

7663663667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22474129.

The product of its digits is 20575296, while the sum is 56.

The square root of 7663663667 is about 87542.3535610050. The cubic root of 7663663667 is about 1971.5697475892.

The spelling of 7663663667 in words is "seven billion, six hundred sixty-three million, six hundred sixty-three thousand, six hundred sixty-seven".