30028750866 has 32 divisors (see below), whose sum is σ = 67007476800. Its totient is φ = 9968045760.

The previous prime is 30028750831. The next prime is 30028750867. The reversal of 30028750866 is 66805782003.

30028750866 is a `hidden beast` number, since 3 + 0 + 0 + 2 + 87 + 508 + 66 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30028750867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140696 + ... + 1166723.

It is an arithmetic number, because the mean of its divisors is an integer number (2093983650).

Almost surely, 2^30028750866 is an apocalyptic number.

30028750866 is an abundant number, since it is smaller than the sum of its proper divisors (36978725934).

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

30028750866 is a wasteful number, since it uses less digits than its factorization.

30028750866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307671 (or 2307665 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

It can be divided in two parts, 300287 and 50866, that added together give a palindrome (351153).

The spelling of 30028750866 in words is "thirty billion, twenty-eight million, seven hundred fifty thousand, eight hundred sixty-six".