28245859285 has 8 divisors (see below), whose sum is σ = 38737178496. Its totient is φ = 19368589200.

The previous prime is 28245859283. The next prime is 28245859303. The reversal of 28245859285 is 58295854282.

It is a happy number.

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

It is not a de Polignac number, because 28245859285 - 2¹ = 28245859283 is a prime.

It is a super-2 number, since 2×28245859285² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28245859283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403512241 + ... + 403512310.

It is an arithmetic number, because the mean of its divisors is an integer number (4842147312).

Almost surely, 2^28245859285 is an apocalyptic number.

It is an amenable number.

28245859285 is a deficient number, since it is larger than the sum of its proper divisors (10491319211).

28245859285 is an equidigital number, since it uses as much as digits as its factorization.

28245859285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807024563.

The product of its digits is 18432000, while the sum is 58.

The spelling of 28245859285 in words is "twenty-eight billion, two hundred forty-five million, eight hundred fifty-nine thousand, two hundred eighty-five".