8008444848421 has 2 divisors, whose sum is σ = 8008444848422. Its totient is φ = 8008444848420.

The previous prime is 8008444848419. The next prime is 8008444848457. The reversal of 8008444848421 is 1248484448008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5220082562500 + 2788362285921 = 2284750^2 + 1669839^2 .

It is a cyclic number.

It is not a de Polignac number, because 8008444848421 - 2¹ = 8008444848419 is a prime.

Together with 8008444848419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8008444848461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4004222424210 + 4004222424211.

It is an arithmetic number, because the mean of its divisors is an integer number (4004222424211).

Almost surely, 2^{8008444848421} is an apocalyptic number.

It is an amenable number.

8008444848421 is a deficient number, since it is larger than the sum of its proper divisors (1).

8008444848421 is an equidigital number, since it uses as much as digits as its factorization.

8008444848421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8388608, while the sum is 55.

The spelling of 8008444848421 in words is "eight trillion, eight billion, four hundred forty-four million, eight hundred forty-eight thousand, four hundred twenty-one".