8146218954721 has 8 divisors (see below), whose sum is σ = 8208549443520. Its totient is φ = 8084075365008.

The previous prime is 8146218954701. The next prime is 8146218954739. The reversal of 8146218954721 is 1274598126418.

It is a happy number.

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 8146218954721 - 2¹⁷ = 8146218823649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8146218954701) 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, 46637266 + ... + 46811611.

It is an arithmetic number, because the mean of its divisors is an integer number (1026068680440).

Almost surely, 2^{8146218954721} is an apocalyptic number.

It is an amenable number.

8146218954721 is a deficient number, since it is larger than the sum of its proper divisors (62330488799).

8146218954721 is a wasteful number, since it uses less digits than its factorization.

8146218954721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93449543.

The product of its digits is 7741440, while the sum is 58.

The spelling of 8146218954721 in words is "eight trillion, one hundred forty-six billion, two hundred eighteen million, nine hundred fifty-four thousand, seven hundred twenty-one".