28302141287 has 8 divisors (see below), whose sum is σ = 32754739200. Its totient is φ = 23951902104.

The previous prime is 28302141271. The next prime is 28302141299. The reversal of 28302141287 is 78214120382.

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

It is a cyclic number.

It is not a de Polignac number, because 28302141287 - 2⁴ = 28302141271 is a prime.

It is a super-2 number, since 2×28302141287² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28302141287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28302141227) 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, 25589087 + ... + 25590192.

It is an arithmetic number, because the mean of its divisors is an integer number (4094342400).

Almost surely, 2^28302141287 is an apocalyptic number.

28302141287 is a deficient number, since it is larger than the sum of its proper divisors (4452597913).

28302141287 is an equidigital number, since it uses as much as digits as its factorization.

28302141287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51179365.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 28302141287 in words is "twenty-eight billion, three hundred two million, one hundred forty-one thousand, two hundred eighty-seven".