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28037856000 = 283537113793

28037856000 has 576 divisors, whose sum is σ = 116137921536. Its totient is φ = 5824512000.

The previous prime is 28037855983. The next prime is 28037856001. The reversal of 28037856000 is 65873082.

It is a super-2 number, since 2×280378560002 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28037856000.

It is not an unprimeable number, because it can be changed into a prime (28037856001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7390104 + ... + 7393896.

It is an arithmetic number, because the mean of its divisors is an integer number (201628336).

Almost surely, 228037856000 is an apocalyptic number.

28037856000 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 28037856000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58068960768).

28037856000 is an abundant number, since it is smaller than the sum of its proper divisors (88100065536).

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

28037856000 is a wasteful number, since it uses less digits than its factorization.

28037856000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845 (or 3821 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 28037856000 in words is "twenty-eight billion, thirty-seven million, eight hundred fifty-six thousand".