1087204581673 has 16 divisors (see below), whose sum is σ = 1251346324096. Its totient is φ = 925288012800.

The previous prime is 1087204581653. The next prime is 1087204581721. The reversal of 1087204581673 is 3761854027801.

It is a cyclic number.

It is not a de Polignac number, because 1087204581673 - 2⁹ = 1087204581161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1087204581673.

It is not an unprimeable number, because it can be changed into a prime (1087204581613) 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 in 15 ways as a sum of consecutive naturals, for example, 62778 + ... + 1475923.

It is an arithmetic number, because the mean of its divisors is an integer number (78209145256).

Almost surely, 2^{1087204581673} is an apocalyptic number.

It is an amenable number.

1087204581673 is a deficient number, since it is larger than the sum of its proper divisors (164141742423).

1087204581673 is a wasteful number, since it uses less digits than its factorization.

1087204581673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539424.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 1087204581673 in words is "one trillion, eighty-seven billion, two hundred four million, five hundred eighty-one thousand, six hundred seventy-three".