18763386402168 has 24 divisors (see below), whose sum is σ = 50817504839400. Its totient is φ = 6254462134032.

The previous prime is 18763386402161. The next prime is 18763386402203. The reversal of 18763386402168 is 86120468336781.

18763386402168 is a `hidden beast` number, since 1 + 8 + 7 + 63 + 3 + 8 + 6 + 402 + 168 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18763386402161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130301294388 + ... + 130301294531.

It is an arithmetic number, because the mean of its divisors is an integer number (2117396034975).

Almost surely, 2^{18763386402168} is an apocalyptic number.

18763386402168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18763386402168 is an abundant number, since it is smaller than the sum of its proper divisors (32054118437232).

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

18763386402168 is a wasteful number, since it uses less digits than its factorization.

18763386402168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260602588931 (or 260602588924 counting only the distinct ones).

The product of its (nonzero) digits is 55738368, while the sum is 63.

The spelling of 18763386402168 in words is "eighteen trillion, seven hundred sixty-three billion, three hundred eighty-six million, four hundred two thousand, one hundred sixty-eight".