1087794081799 has 2 divisors, whose sum is σ = 1087794081800. Its totient is φ = 1087794081798.

The previous prime is 1087794081797. The next prime is 1087794081823. The reversal of 1087794081799 is 9971804977801.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1087794081799 - 2¹ = 1087794081797 is a prime.

Together with 1087794081797, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087794081797) 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, 543897040899 + 543897040900.

It is an arithmetic number, because the mean of its divisors is an integer number (543897040900).

Almost surely, 2^{1087794081799} is an apocalyptic number.

1087794081799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087794081799 is an equidigital number, since it uses as much as digits as its factorization.

1087794081799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64012032, while the sum is 70.

The spelling of 1087794081799 in words is "one trillion, eighty-seven billion, seven hundred ninety-four million, eighty-one thousand, seven hundred ninety-nine".