1808958080653 has 2 divisors, whose sum is σ = 1808958080654. Its totient is φ = 1808958080652.

The previous prime is 1808958080651. The next prime is 1808958080701. The reversal of 1808958080653 is 3560808598081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1804621463044 + 4336617609 = 1343362^2 + 65853^2 .

It is a cyclic number.

It is not a de Polignac number, because 1808958080653 - 2¹ = 1808958080651 is a prime.

Together with 1808958080651, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1808958080591 and 1808958080600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1808958080651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 904479040326 + 904479040327.

It is an arithmetic number, because the mean of its divisors is an integer number (904479040327).

Almost surely, 2^{1808958080653} is an apocalyptic number.

It is an amenable number.

1808958080653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1808958080653 is an equidigital number, since it uses as much as digits as its factorization.

1808958080653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16588800, while the sum is 61.

The spelling of 1808958080653 in words is "one trillion, eight hundred eight billion, nine hundred fifty-eight million, eighty thousand, six hundred fifty-three".