19054138185877 has 2 divisors, whose sum is σ = 19054138185878. Its totient is φ = 19054138185876.

The previous prime is 19054138185827. The next prime is 19054138185911. The reversal of 19054138185877 is 77858183145091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14078209384836 + 4975928801041 = 3752094^2 + 2230679^2 .

It is a cyclic number.

It is not a de Polignac number, because 19054138185877 - 2⁷ = 19054138185749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19054138185827) by changing a digit.

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 as a sum of consecutive naturals, namely, 9527069092938 + 9527069092939.

It is an arithmetic number, because the mean of its divisors is an integer number (9527069092939).

Almost surely, 2^{19054138185877} is an apocalyptic number.

It is an amenable number.

19054138185877 is a deficient number, since it is larger than the sum of its proper divisors (1).

19054138185877 is an equidigital number, since it uses as much as digits as its factorization.

19054138185877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67737600, while the sum is 67.

The spelling of 19054138185877 in words is "nineteen trillion, fifty-four billion, one hundred thirty-eight million, one hundred eighty-five thousand, eight hundred seventy-seven".