8420044420688 has 40 divisors (see below), whose sum is σ = 17256326947008. Its totient is φ = 3971813674752.

The previous prime is 8420044420639. The next prime is 8420044420691. The reversal of 8420044420688 is 8860244400248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156689270 + ... + 156742997.

Almost surely, 2^{8420044420688} is an apocalyptic number.

It is an amenable number.

8420044420688 is an abundant number, since it is smaller than the sum of its proper divisors (8836282526320).

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

8420044420688 is a wasteful number, since it uses less digits than its factorization.

8420044420688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313432371 (or 313432365 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 50.

The spelling of 8420044420688 in words is "eight trillion, four hundred twenty billion, forty-four million, four hundred twenty thousand, six hundred eighty-eight".