28383323850 has 144 divisors (see below), whose sum is σ = 91737372480. Its totient is φ = 6146150400.

The previous prime is 28383323797. The next prime is 28383323861. The reversal of 28383323850 is 5832338382.

28383323850 is a `hidden beast` number, since 283 + 8 + 332 + 38 + 5 + 0 = 666.

It is a super-2 number, since 2×28383323850² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28383323796 and 28383323805.

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, 177271 + ... + 296970.

Almost surely, 2^28383323850 is an apocalyptic number.

28383323850 is an abundant number, since it is smaller than the sum of its proper divisors (63354048630).

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

28383323850 is a wasteful number, since it uses less digits than its factorization.

28383323850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474285 (or 474277 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The spelling of 28383323850 in words is "twenty-eight billion, three hundred eighty-three million, three hundred twenty-three thousand, eight hundred fifty".