11813386851073 has 4 divisors (see below), whose sum is σ = 11879383425840. Its totient is φ = 11747390276308.

The previous prime is 11813386851059. The next prime is 11813386851083. The reversal of 11813386851073 is 37015868331811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11813386851073 - 2⁵ = 11813386851041 is a prime.

It is a super-2 number, since 2×11813386851073² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11813386851083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32998287115 + ... + 32998287472.

It is an arithmetic number, because the mean of its divisors is an integer number (2969845856460).

Almost surely, 2^{11813386851073} is an apocalyptic number.

It is an amenable number.

11813386851073 is a deficient number, since it is larger than the sum of its proper divisors (65996574767).

11813386851073 is an equidigital number, since it uses as much as digits as its factorization.

11813386851073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65996574766.

The product of its (nonzero) digits is 2903040, while the sum is 55.

The spelling of 11813386851073 in words is "eleven trillion, eight hundred thirteen billion, three hundred eighty-six million, eight hundred fifty-one thousand, seventy-three".