1810098585601 has 4 divisors (see below), whose sum is σ = 1814398107604. Its totient is φ = 1805799063600.

The previous prime is 1810098585599. The next prime is 1810098585623. The reversal of 1810098585601 is 1065858900181.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 610250004225 + 1199848581376 = 781185^2 + 1095376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1810098585601 - 2¹ = 1810098585599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1810098585101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2149760370 + ... + 2149761211.

It is an arithmetic number, because the mean of its divisors is an integer number (453599526901).

Almost surely, 2^{1810098585601} is an apocalyptic number.

It is an amenable number.

1810098585601 is a deficient number, since it is larger than the sum of its proper divisors (4299522003).

1810098585601 is an equidigital number, since it uses as much as digits as its factorization.

1810098585601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4299522002.

The product of its (nonzero) digits is 691200, while the sum is 52.

The spelling of 1810098585601 in words is "one trillion, eight hundred ten billion, ninety-eight million, five hundred eighty-five thousand, six hundred one".