28375827480 has 768 divisors, whose sum is σ = 126427392000. Its totient is φ = 5439329280.

The previous prime is 28375827479. The next prime is 28375827503. The reversal of 28375827480 is 8472857382.

28375827480 is a `hidden beast` number, since 2 + 83 + 7 + 5 + 82 + 7 + 480 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 17656837 + ... + 17658443.

It is an arithmetic number, because the mean of its divisors is an integer number (164619000).

Almost surely, 2^28375827480 is an apocalyptic number.

28375827480 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 28375827480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63213696000).

28375827480 is an abundant number, since it is smaller than the sum of its proper divisors (98051564520).

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

28375827480 is a wasteful number, since it uses less digits than its factorization.

28375827480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1648 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 28375827480 in words is "twenty-eight billion, three hundred seventy-five million, eight hundred twenty-seven thousand, four hundred eighty".