8422450639680 has 1344 divisors, whose sum is σ = 34788563066880. Its totient is φ = 1688859279360.

The previous prime is 8422450639667. The next prime is 8422450639703. The reversal of 8422450639680 is 869360542248.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a self number, because there is not a number n which added to its sum of digits gives 8422450639680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2789813211 + ... + 2789816229.

It is an arithmetic number, because the mean of its divisors is an integer number (25884347520).

Almost surely, 2^{8422450639680} is an apocalyptic number.

8422450639680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8422450639680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17394281533440).

8422450639680 is an abundant number, since it is smaller than the sum of its proper divisors (26366112427200).

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

8422450639680 is a wasteful number, since it uses less digits than its factorization.

8422450639680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188 (or 3167 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 57.

The spelling of 8422450639680 in words is "eight trillion, four hundred twenty-two billion, four hundred fifty million, six hundred thirty-nine thousand, six hundred eighty".