28757016576 has 360 divisors, whose sum is σ = 89310783744. Its totient is φ = 9236643840.

The previous prime is 28757016571. The next prime is 28757016577. The reversal of 28757016576 is 67561075782.

It is a happy number.

28757016576 is a `hidden beast` number, since 2 + 8 + 7 + 57 + 0 + 16 + 576 = 666.

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 (28757016571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123420556 + ... + 123420788.

Almost surely, 2^28757016576 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 28757016576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44655391872).

28757016576 is an abundant number, since it is smaller than the sum of its proper divisors (60553767168).

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

28757016576 is an frugal number, since it uses more digits than its factorization.

28757016576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 28757016576 in words is "twenty-eight billion, seven hundred fifty-seven million, sixteen thousand, five hundred seventy-six".