30188899192 has 32 divisors (see below), whose sum is σ = 57375979200. Its totient is φ = 14889744000.

The previous prime is 30188899187. The next prime is 30188899199. The reversal of 30188899192 is 29199888103.

It is a super-2 number, since 2×30188899192² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30188899199) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 150034 + ... + 287902.

It is an arithmetic number, because the mean of its divisors is an integer number (1792999350).

Almost surely, 2^30188899192 is an apocalyptic number.

It is an amenable number.

30188899192 is a deficient number, since it is larger than the sum of its proper divisors (27187080008).

30188899192 is a wasteful number, since it uses less digits than its factorization.

30188899192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138247 (or 138243 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 58.

The spelling of 30188899192 in words is "thirty billion, one hundred eighty-eight million, eight hundred ninety-nine thousand, one hundred ninety-two".