28495302144 has 80 divisors (see below), whose sum is σ = 76042454400. Its totient is φ = 9482270720.

The previous prime is 28495302113. The next prime is 28495302151. The reversal of 28495302144 is 44120359482.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28495302096 and 28495302105.

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, 904579 + ... + 935549.

It is an arithmetic number, because the mean of its divisors is an integer number (950530680).

Almost surely, 2^28495302144 is an apocalyptic number.

28495302144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28495302144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38021227200).

28495302144 is an abundant number, since it is smaller than the sum of its proper divisors (47547152256).

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

28495302144 is an equidigital number, since it uses as much as digits as its factorization.

28495302144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31591 (or 31575 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 28495302144 in words is "twenty-eight billion, four hundred ninety-five million, three hundred two thousand, one hundred forty-four".