10998787539365 has 4 divisors (see below), whose sum is σ = 13198545047244. Its totient is φ = 8799030031488.

The previous prime is 10998787539359. The next prime is 10998787539403. The reversal of 10998787539365 is 56393578789901.

It is a Cunningham number, because it is equal to 3316442²+1.

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 3959566697956 + 7039220841409 = 1989866^2 + 2653153^2 .

It is a cyclic number.

It is not a de Polignac number, because 10998787539365 - 2⁴ = 10998787539349 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 10998787539365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099878753932 + ... + 1099878753941.

It is an arithmetic number, because the mean of its divisors is an integer number (3299636261811).

Almost surely, 2^{10998787539365} is an apocalyptic number.

It is an amenable number.

10998787539365 is a deficient number, since it is larger than the sum of its proper divisors (2199757507879).

10998787539365 is an equidigital number, since it uses as much as digits as its factorization.

10998787539365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199757507878.

The product of its (nonzero) digits is 3086294400, while the sum is 80.

The spelling of 10998787539365 in words is "ten trillion, nine hundred ninety-eight billion, seven hundred eighty-seven million, five hundred thirty-nine thousand, three hundred sixty-five".