28287014885 has 8 divisors (see below), whose sum is σ = 33972688536. Its totient is φ = 22610764800.

The previous prime is 28287014849. The next prime is 28287014893. The reversal of 28287014885 is 58841078282.

It can be written as a sum of positive squares in 4 ways, for example, as 127825636 + 28159189249 = 11306^2 + 167807^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28287014885 - 2¹⁰ = 28287013861 is a prime.

It is a super-2 number, since 2×28287014885² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2349284 + ... + 2361293.

It is an arithmetic number, because the mean of its divisors is an integer number (4246586067).

Almost surely, 2^28287014885 is an apocalyptic number.

It is an amenable number.

28287014885 is a deficient number, since it is larger than the sum of its proper divisors (5685673651).

28287014885 is a wasteful number, since it uses less digits than its factorization.

28287014885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711783.

The product of its (nonzero) digits is 2293760, while the sum is 53.

The spelling of 28287014885 in words is "twenty-eight billion, two hundred eighty-seven million, fourteen thousand, eight hundred eighty-five".