28754828466 has 288 divisors, whose sum is σ = 78137369280. Its totient is φ = 7004454912.

The previous prime is 28754828411. The next prime is 28754828477. The reversal of 28754828466 is 66482845782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 49834770 + ... + 49835346.

It is an arithmetic number, because the mean of its divisors is an integer number (271310310).

Almost surely, 2^28754828466 is an apocalyptic number.

28754828466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28754828466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39068684640).

28754828466 is an abundant number, since it is smaller than the sum of its proper divisors (49382540814).

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

28754828466 is a wasteful number, since it uses less digits than its factorization.

28754828466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 678 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 60.

The spelling of 28754828466 in words is "twenty-eight billion, seven hundred fifty-four million, eight hundred twenty-eight thousand, four hundred sixty-six".