11179616813 has 2 divisors, whose sum is σ = 11179616814. Its totient is φ = 11179616812.

The previous prime is 11179616809. The next prime is 11179616839. The reversal of 11179616813 is 31861697111.

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., 10849722244 + 329894569 = 104162^2 + 18163^2 .

It is a cyclic number.

It is not a de Polignac number, because 11179616813 - 2² = 11179616809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11179616803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5589808406 + 5589808407.

It is an arithmetic number, because the mean of its divisors is an integer number (5589808407).

Almost surely, 2^11179616813 is an apocalyptic number.

It is an amenable number.

11179616813 is a deficient number, since it is larger than the sum of its proper divisors (1).

11179616813 is an equidigital number, since it uses as much as digits as its factorization.

11179616813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 44.

The spelling of 11179616813 in words is "eleven billion, one hundred seventy-nine million, six hundred sixteen thousand, eight hundred thirteen".