8193430087668 has 72 divisors (see below), whose sum is σ = 24152968548800. Its totient is φ = 2340980021520.

The previous prime is 8193430087663. The next prime is 8193430087679. The reversal of 8193430087668 is 8667800343918.

8193430087668 is a `hidden beast` number, since 8 + 193 + 4 + 300 + 87 + 6 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8193430087663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331759198 + ... + 331783893.

Almost surely, 2^{8193430087668} is an apocalyptic number.

It is an amenable number.

8193430087668 is an abundant number, since it is smaller than the sum of its proper divisors (15959538461132).

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

8193430087668 is a wasteful number, since it uses less digits than its factorization.

8193430087668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663543122 (or 663543103 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 8193430087668 in words is "eight trillion, one hundred ninety-three billion, four hundred thirty million, eighty-seven thousand, six hundred sixty-eight".