6394108017440 has 768 divisors, whose sum is σ = 18777015129600. Its totient is φ = 2025504768000.

The previous prime is 6394108017397. The next prime is 6394108017503. The reversal of 6394108017440 is 447108014936.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9121409090 + ... + 9121409790.

It is an arithmetic number, because the mean of its divisors is an integer number (24449238450).

Almost surely, 2^{6394108017440} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6394108017440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9388507564800).

6394108017440 is an abundant number, since it is smaller than the sum of its proper divisors (12382907112160).

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

6394108017440 is a wasteful number, since it uses less digits than its factorization.

6394108017440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 6394108017440 in words is "six trillion, three hundred ninety-four billion, one hundred eight million, seventeen thousand, four hundred forty".