28574941950 has 144 divisors (see below), whose sum is σ = 78382371600. Its totient is φ = 7461120000.

The previous prime is 28574941937. The next prime is 28574941981. The reversal of 28574941950 is 5914947582.

It is a happy number.

28574941950 is a `hidden beast` number, since 2 + 8 + 574 + 9 + 4 + 19 + 50 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7139950 + ... + 7143950.

It is an arithmetic number, because the mean of its divisors is an integer number (544322025).

Almost surely, 2^28574941950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28574941950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39191185800).

28574941950 is an abundant number, since it is smaller than the sum of its proper divisors (49807429650).

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

28574941950 is a wasteful number, since it uses less digits than its factorization.

28574941950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4347 (or 4339 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 28574941950 in words is "twenty-eight billion, five hundred seventy-four million, nine hundred forty-one thousand, nine hundred fifty".