28467525816 has 112 divisors (see below), whose sum is σ = 80606345400. Its totient is φ = 9420639552.

The previous prime is 28467525781. The next prime is 28467525817. The reversal of 28467525816 is 61852576482.

28467525816 is a `hidden beast` number, since 2 + 8 + 4 + 6 + 7 + 52 + 581 + 6 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28467525817) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 793090 + ... + 828206.

Almost surely, 2^28467525816 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 28467525816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40303172700).

28467525816 is an abundant number, since it is smaller than the sum of its proper divisors (52138819584).

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

28467525816 is a wasteful number, since it uses less digits than its factorization.

28467525816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35280 (or 35261 counting only the distinct ones).

The product of its digits is 6451200, while the sum is 54.

The spelling of 28467525816 in words is "twenty-eight billion, four hundred sixty-seven million, five hundred twenty-five thousand, eight hundred sixteen".