28032449497024 has 224 divisors, whose sum is σ = 67455784848384. Its totient is φ = 11283288145920.

The previous prime is 28032449496983. The next prime is 28032449497033. The reversal of 28032449497024 is 42079494423082.

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

It is a super-2 number, since 2×28032449497024² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28032449497024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13431934509 + ... + 13431936595.

Almost surely, 2^{28032449497024} 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 28032449497024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33727892424192).

28032449497024 is an abundant number, since it is smaller than the sum of its proper divisors (39423335351360).

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

28032449497024 is a wasteful number, since it uses less digits than its factorization.

28032449497024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011 (or 5001 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 58.

The spelling of 28032449497024 in words is "twenty-eight trillion, thirty-two billion, four hundred forty-nine million, four hundred ninety-seven thousand, twenty-four".