8043138667 has 8 divisors (see below), whose sum is σ = 8166744080. Its totient is φ = 7920439200.

The previous prime is 8043138659. The next prime is 8043138739. The reversal of 8043138667 is 7668313408.

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

It is a cyclic number.

It is not a de Polignac number, because 8043138667 - 2³ = 8043138659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8043138637) 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, 208584 + ... + 244117.

It is an arithmetic number, because the mean of its divisors is an integer number (1020843010).

Almost surely, 2^8043138667 is an apocalyptic number.

8043138667 is a deficient number, since it is larger than the sum of its proper divisors (123605413).

8043138667 is a wasteful number, since it uses less digits than its factorization.

8043138667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452973.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 8043138667 is about 89683.5473595910. The cubic root of 8043138667 is about 2003.5884465915.

The spelling of 8043138667 in words is "eight billion, forty-three million, one hundred thirty-eight thousand, six hundred sixty-seven".