8334217673621 has 16 divisors (see below), whose sum is σ = 9549006271488. Its totient is φ = 7125477216000.

The previous prime is 8334217673597. The next prime is 8334217673623. The reversal of 8334217673621 is 1263767124338.

It is a cyclic number.

It is not a de Polignac number, because 8334217673621 - 2³⁰ = 8333143931797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8334217673623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77821091 + ... + 77928111.

It is an arithmetic number, because the mean of its divisors is an integer number (596812891968).

Almost surely, 2^{8334217673621} is an apocalyptic number.

It is an amenable number.

8334217673621 is a deficient number, since it is larger than the sum of its proper divisors (1214788597867).

8334217673621 is a wasteful number, since it uses less digits than its factorization.

8334217673621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135172.

The product of its digits is 6096384, while the sum is 53.

The spelling of 8334217673621 in words is "eight trillion, three hundred thirty-four billion, two hundred seventeen million, six hundred seventy-three thousand, six hundred twenty-one".