2091754990027 has 2 divisors, whose sum is σ = 2091754990028. Its totient is φ = 2091754990026.

The previous prime is 2091754989953. The next prime is 2091754990033. The reversal of 2091754990027 is 7200994571902.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2091754990027 - 2¹¹ = 2091754987979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2091754990027.

It is not a weakly prime, because it can be changed into another prime (2091754990327) 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, 1045877495013 + 1045877495014.

It is an arithmetic number, because the mean of its divisors is an integer number (1045877495014).

Almost surely, 2^{2091754990027} is an apocalyptic number.

2091754990027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091754990027 is an equidigital number, since it uses as much as digits as its factorization.

2091754990027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 2091754990027 in words is "two trillion, ninety-one billion, seven hundred fifty-four million, nine hundred ninety thousand, twenty-seven".