28887126057216 has 432 divisors, whose sum is σ = 103244576617728. Its totient is φ = 7578501120000.

The previous prime is 28887126057173. The next prime is 28887126057313. The reversal of 28887126057216 is 61275062178882.

28887126057216 is a `hidden beast` number, since 2 + 8 + 8 + 8 + 7 + 1 + 2 + 605 + 7 + 2 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9956341 + ... + 12526091.

It is an arithmetic number, because the mean of its divisors is an integer number (238992075504).

Almost surely, 2^{28887126057216} 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 28887126057216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51622288308864).

28887126057216 is an abundant number, since it is smaller than the sum of its proper divisors (74357450560512).

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

28887126057216 is a wasteful number, since it uses less digits than its factorization.

28887126057216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569838 (or 2569821 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 63.

The spelling of 28887126057216 in words is "twenty-eight trillion, eight hundred eighty-seven billion, one hundred twenty-six million, fifty-seven thousand, two hundred sixteen".