28255300416 has 672 divisors, whose sum is σ = 102990700800. Its totient is φ = 7559516160.

The previous prime is 28255300391. The next prime is 28255300417. The reversal of 28255300416 is 61400355282.

28255300416 is a `hidden beast` number, since 2 + 82 + 5 + 530 + 0 + 41 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255300417) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 90852901 + ... + 90853211.

Almost surely, 2^28255300416 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 28255300416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51495350400).

28255300416 is an abundant number, since it is smaller than the sum of its proper divisors (74735400384).

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

28255300416 is a wasteful number, since it uses less digits than its factorization.

28255300416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 28255300416 its reverse (61400355282), we get a palindrome (89655655698).

The spelling of 28255300416 in words is "twenty-eight billion, two hundred fifty-five million, three hundred thousand, four hundred sixteen".