12918030585613 has 4 divisors (see below), whose sum is σ = 12918037788700. Its totient is φ = 12918023382528.

The previous prime is 12918030585569. The next prime is 12918030585641. The reversal of 12918030585613 is 31658503081921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3157736108004 + 9760294477609 = 1777002^2 + 3124147^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12918030585613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12918030585653) 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, 1455181 + ... + 5287117.

It is an arithmetic number, because the mean of its divisors is an integer number (3229509447175).

Almost surely, 2^{12918030585613} is an apocalyptic number.

It is an amenable number.

12918030585613 is a deficient number, since it is larger than the sum of its proper divisors (7203087).

12918030585613 is an equidigital number, since it uses as much as digits as its factorization.

12918030585613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7203086.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 12918030585613 in words is "twelve trillion, nine hundred eighteen billion, thirty million, five hundred eighty-five thousand, six hundred thirteen".