28866550350 has 96 divisors (see below), whose sum is σ = 78189531264. Its totient is φ = 6989673600.

The previous prime is 28866550331. The next prime is 28866550351. The reversal of 28866550350 is 5305566882.

It is a self number, because there is not a number n which added to its sum of digits gives 28866550350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28866550351) 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 47 ways as a sum of consecutive naturals, for example, 1447044 + ... + 1466856.

It is an arithmetic number, because the mean of its divisors is an integer number (814474284).

Almost surely, 2^28866550350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28866550350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39094765632).

28866550350 is an abundant number, since it is smaller than the sum of its proper divisors (49322980914).

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

28866550350 is a wasteful number, since it uses less digits than its factorization.

28866550350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20722 (or 20717 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 28866550350 in words is "twenty-eight billion, eight hundred sixty-six million, five hundred fifty thousand, three hundred fifty".