8421616247208 has 32 divisors (see below), whose sum is σ = 21258448785600. Its totient is φ = 2779950993408.

The previous prime is 8421616247173. The next prime is 8421616247237. The reversal of 8421616247208 is 8027426161248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703398873 + ... + 1703403816.

It is an arithmetic number, because the mean of its divisors is an integer number (664326524550).

Almost surely, 2^{8421616247208} is an apocalyptic number.

It is an amenable number.

8421616247208 is an abundant number, since it is smaller than the sum of its proper divisors (12836832538392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8421616247208 is a wasteful number, since it uses less digits than its factorization.

8421616247208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406802801 (or 3406802797 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 8421616247208 in words is "eight trillion, four hundred twenty-one billion, six hundred sixteen million, two hundred forty-seven thousand, two hundred eight".