1081344245759 has 4 divisors (see below), whose sum is σ = 1083494036016. Its totient is φ = 1079194455504.

The previous prime is 1081344245713. The next prime is 1081344245783. The reversal of 1081344245759 is 9575424431801.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1081344245759 is a prime.

It is a super-2 number, since 2×1081344245759² (a number of 25 digits) contains 22 as substring.

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 1081344245759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081344245659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074894374 + ... + 1074895379.

It is an arithmetic number, because the mean of its divisors is an integer number (270873509004).

Almost surely, 2^{1081344245759} is an apocalyptic number.

1081344245759 is a deficient number, since it is larger than the sum of its proper divisors (2149790257).

1081344245759 is an equidigital number, since it uses as much as digits as its factorization.

1081344245759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149790256.

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 1081344245759 in words is "one trillion, eighty-one billion, three hundred forty-four million, two hundred forty-five thousand, seven hundred fifty-nine".