11813604053917 has 2 divisors, whose sum is σ = 11813604053918. Its totient is φ = 11813604053916.

The previous prime is 11813604053879. The next prime is 11813604054011. The reversal of 11813604053917 is 71935040631811.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9209944274521 + 2603659779396 = 3034789^2 + 1613586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11813604053917 is a prime.

It is a super-2 number, since 2×11813604053917² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11813604153917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5906802026958 + 5906802026959.

It is an arithmetic number, because the mean of its divisors is an integer number (5906802026959).

Almost surely, 2^{11813604053917} is an apocalyptic number.

It is an amenable number.

11813604053917 is a deficient number, since it is larger than the sum of its proper divisors (1).

11813604053917 is an equidigital number, since it uses as much as digits as its factorization.

11813604053917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The spelling of 11813604053917 in words is "eleven trillion, eight hundred thirteen billion, six hundred four million, fifty-three thousand, nine hundred seventeen".