28711302144 has 176 divisors, whose sum is σ = 87958771200. Its totient is φ = 8156307456.

The previous prime is 28711302083. The next prime is 28711302161. The reversal of 28711302144 is 44120311782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3845487 + ... + 3852945.

Almost surely, 2^28711302144 is an apocalyptic number.

28711302144 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 28711302144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43979385600).

28711302144 is an abundant number, since it is smaller than the sum of its proper divisors (59247469056).

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

28711302144 is a wasteful number, since it uses less digits than its factorization.

28711302144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7668 (or 7650 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 28711302144 in words is "twenty-eight billion, seven hundred eleven million, three hundred two thousand, one hundred forty-four".