6495228638528 has 224 divisors, whose sum is σ = 15304334745600. Its totient is φ = 2677842026496.

The previous prime is 6495228638527. The next prime is 6495228638543. The reversal of 6495228638528 is 8258368225946.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6495228638527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235944701 + ... + 235972227.

Almost surely, 2^{6495228638528} 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 6495228638528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7652167372800).

6495228638528 is an abundant number, since it is smaller than the sum of its proper divisors (8809106107072).

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

6495228638528 is a wasteful number, since it uses less digits than its factorization.

6495228638528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27797 (or 27787 counting only the distinct ones).

The product of its digits is 398131200, while the sum is 68.

The spelling of 6495228638528 in words is "six trillion, four hundred ninety-five billion, two hundred twenty-eight million, six hundred thirty-eight thousand, five hundred twenty-eight".