28364185850 has 96 divisors (see below), whose sum is σ = 70835216256. Its totient is φ = 8160710400.

The previous prime is 28364185807. The next prime is 28364185873. The reversal of 28364185850 is 5858146382.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Curzon number.

It is an unprimeable number.

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, 233309 + ... + 333408.

It is an arithmetic number, because the mean of its divisors is an integer number (737866836).

Almost surely, 2^28364185850 is an apocalyptic number.

28364185850 is an abundant number, since it is smaller than the sum of its proper divisors (42471030406).

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

28364185850 is a wasteful number, since it uses less digits than its factorization.

28364185850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566760 (or 566755 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 28364185850 in words is "twenty-eight billion, three hundred sixty-four million, one hundred eighty-five thousand, eight hundred fifty".