30168688189 has 8 divisors (see below), whose sum is σ = 31947154488. Its totient is φ = 28390648320.

The previous prime is 30168688117. The next prime is 30168688237. The reversal of 30168688189 is 98188686103.

It can be written as a sum of positive squares in 4 ways, for example, as 3056431225 + 27112256964 = 55285^2 + 164658^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30168688189 - 2¹⁵ = 30168655421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30168688289) 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, 45249 + ... + 249769.

It is an arithmetic number, because the mean of its divisors is an integer number (3993394311).

Almost surely, 2^30168688189 is an apocalyptic number.

It is an amenable number.

30168688189 is a deficient number, since it is larger than the sum of its proper divisors (1778466299).

30168688189 is a wasteful number, since it uses less digits than its factorization.

30168688189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213215.

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 30168688189 in words is "thirty billion, one hundred sixty-eight million, six hundred eighty-eight thousand, one hundred eighty-nine".