30724064188 has 12 divisors (see below), whose sum is σ = 53966991960. Its totient is φ = 15304923632.

The previous prime is 30724064183. The next prime is 30724064201. The reversal of 30724064188 is 88146042703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30724064183) 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 3 ways as a sum of consecutive naturals, for example, 14275906 + ... + 14278057.

It is an arithmetic number, because the mean of its divisors is an integer number (4497249330).

Almost surely, 2^30724064188 is an apocalyptic number.

It is an amenable number.

30724064188 is a deficient number, since it is larger than the sum of its proper divisors (23242927772).

30724064188 is a wasteful number, since it uses less digits than its factorization.

30724064188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28554236 (or 28554234 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The spelling of 30724064188 in words is "thirty billion, seven hundred twenty-four million, sixty-four thousand, one hundred eighty-eight".