28287014886 has 80 divisors (see below), whose sum is σ = 69547739184. Its totient is φ = 8539442496.

The previous prime is 28287014849. The next prime is 28287014893. The reversal of 28287014886 is 68841078282.

28287014886 is a `hidden beast` number, since 2 + 82 + 87 + 0 + 1 + 488 + 6 = 666.

It is a super-2 number, since 2×28287014886² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15096 + ... + 238331.

Almost surely, 2^28287014886 is an apocalyptic number.

28287014886 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28287014886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34773869592).

28287014886 is an abundant number, since it is smaller than the sum of its proper divisors (41260724298).

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

28287014886 is a wasteful number, since it uses less digits than its factorization.

28287014886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253507 (or 253498 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 54.

The spelling of 28287014886 in words is "twenty-eight billion, two hundred eighty-seven million, fourteen thousand, eight hundred eighty-six".