1080807061813 has 4 divisors (see below), whose sum is σ = 1144383947820. Its totient is φ = 1017230175808.

The previous prime is 1080807061793. The next prime is 1080807061837. The reversal of 1080807061813 is 3181607080801.

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 650251929924 + 430555131889 = 806382^2 + 656167^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080807061813 - 2¹⁷ = 1080806930741 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 1080807061813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080807061853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31788442978 + ... + 31788443011.

It is an arithmetic number, because the mean of its divisors is an integer number (286095986955).

Almost surely, 2^{1080807061813} is an apocalyptic number.

It is an amenable number.

1080807061813 is a deficient number, since it is larger than the sum of its proper divisors (63576886007).

1080807061813 is an equidigital number, since it uses as much as digits as its factorization.

1080807061813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63576886006.

The product of its (nonzero) digits is 64512, while the sum is 43.

The spelling of 1080807061813 in words is "one trillion, eighty billion, eight hundred seven million, sixty-one thousand, eight hundred thirteen".