28144301286 has 16 divisors (see below), whose sum is σ = 56308338864. Its totient is φ = 9378144384.

The previous prime is 28144301281. The next prime is 28144301299. The reversal of 28144301286 is 68210344182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28144301281) 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, 803775 + ... + 838058.

It is an arithmetic number, because the mean of its divisors is an integer number (3519271179).

Almost surely, 2^28144301286 is an apocalyptic number.

28144301286 is an abundant number, since it is smaller than the sum of its proper divisors (28164037578).

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

28144301286 is a wasteful number, since it uses less digits than its factorization.

28144301286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644695.

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 28144301286 in words is "twenty-eight billion, one hundred forty-four million, three hundred one thousand, two hundred eighty-six".