19180013625668 has 12 divisors (see below), whose sum is σ = 38360027251392. Its totient is φ = 8220005839560.

The previous prime is 19180013625653. The next prime is 19180013625679. The reversal of 19180013625668 is 86652631008191.

19180013625668 is an admirable number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 342500243288 + ... + 342500243343.

It is an arithmetic number, because the mean of its divisors is an integer number (3196668937616).

Almost surely, 2^{19180013625668} is an apocalyptic number.

It is an amenable number.

19180013625668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19180013625668 is a wasteful number, since it uses less digits than its factorization.

19180013625668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685000486642 (or 685000486640 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 56.

The spelling of 19180013625668 in words is "nineteen trillion, one hundred eighty billion, thirteen million, six hundred twenty-five thousand, six hundred sixty-eight".