30853780188 has 96 divisors (see below), whose sum is σ = 91450114560. Its totient is φ = 7862749440.

The previous prime is 30853780183. The next prime is 30853780213. The reversal of 30853780188 is 88108735803.

It is a self number, because there is not a number n which added to its sum of digits gives 30853780188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30853780183) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 266043 + ... + 363986.

It is an arithmetic number, because the mean of its divisors is an integer number (952605360).

Almost surely, 2^30853780188 is an apocalyptic number.

It is an amenable number.

30853780188 is an abundant number, since it is smaller than the sum of its proper divisors (60596334372).

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

30853780188 is a wasteful number, since it uses less digits than its factorization.

30853780188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630107 (or 630105 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 30853780188 in words is "thirty billion, eight hundred fifty-three million, seven hundred eighty thousand, one hundred eighty-eight".