6428216172496 has 80 divisors (see below), whose sum is σ = 13621408174080. Its totient is φ = 2925586667520.

The previous prime is 6428216172461. The next prime is 6428216172541. The reversal of 6428216172496 is 6942716128246.

It is a self number, because there is not a number n which added to its sum of digits gives 6428216172496.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12969690 + ... + 13456198.

It is an arithmetic number, because the mean of its divisors is an integer number (170267602176).

Almost surely, 2^{6428216172496} 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 6428216172496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6810704087040).

6428216172496 is an abundant number, since it is smaller than the sum of its proper divisors (7193192001584).

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

6428216172496 is a wasteful number, since it uses less digits than its factorization.

6428216172496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488132 (or 488126 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 58.

The spelling of 6428216172496 in words is "six trillion, four hundred twenty-eight billion, two hundred sixteen million, one hundred seventy-two thousand, four hundred ninety-six".