28711008000 has 432 divisors, whose sum is σ = 104236003872. Its totient is φ = 7587840000.

The previous prime is 28711007989. The next prime is 28711008013. The reversal of 28711008000 is 80011782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37727620 + ... + 37728380.

It is an arithmetic number, because the mean of its divisors is an integer number (241287046).

Almost surely, 2^28711008000 is an apocalyptic number.

28711008000 is a gapful number since it is divisible by the number (20) 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 28711008000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52118001936).

28711008000 is an abundant number, since it is smaller than the sum of its proper divisors (75524995872).

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

28711008000 is a wasteful number, since it uses less digits than its factorization.

28711008000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 902 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

Adding to 28711008000 its reverse (80011782), we get a palindrome (28791019782).

The spelling of 28711008000 in words is "twenty-eight billion, seven hundred eleven million, eight thousand".