19381377005568 has 120 divisors (see below), whose sum is σ = 57890718325440. Its totient is φ = 6460458946560.

The previous prime is 19381377005531. The next prime is 19381377005579. The reversal of 19381377005568 is 86550077318391.

19381377005568 is a `hidden beast` number, since 1 + 9 + 3 + 8 + 1 + 3 + 7 + 70 + 0 + 556 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 58251168 + ... + 58582943.

It is an arithmetic number, because the mean of its divisors is an integer number (482422652712).

Almost surely, 2^{19381377005568} is an apocalyptic number.

19381377005568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19381377005568 is an abundant number, since it is smaller than the sum of its proper divisors (38509341319872).

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

19381377005568 is an equidigital number, since it uses as much as digits as its factorization.

19381377005568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116834145 (or 116834116 counting only the distinct ones).

The product of its (nonzero) digits is 38102400, while the sum is 63.

The spelling of 19381377005568 in words is "nineteen trillion, three hundred eighty-one billion, three hundred seventy-seven million, five thousand, five hundred sixty-eight".