19100010920077 has 2 divisors, whose sum is σ = 19100010920078. Its totient is φ = 19100010920076.

The previous prime is 19100010920021. The next prime is 19100010920093. The reversal of 19100010920077 is 77002901000191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17803159145641 + 1296851774436 = 4219379^2 + 1138794^2 .

It is an emirp because it is prime and its reverse (77002901000191) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19100010920077 - 2²⁷ = 19099876702349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19100010920377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9550005460038 + 9550005460039.

It is an arithmetic number, because the mean of its divisors is an integer number (9550005460039).

Almost surely, 2^{19100010920077} is an apocalyptic number.

It is an amenable number.

19100010920077 is a deficient number, since it is larger than the sum of its proper divisors (1).

19100010920077 is an equidigital number, since it uses as much as digits as its factorization.

19100010920077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7938, while the sum is 37.

The spelling of 19100010920077 in words is "nineteen trillion, one hundred billion, ten million, nine hundred twenty thousand, seventy-seven".