11581179306842 has 4 divisors (see below), whose sum is σ = 17371768960266. Its totient is φ = 5790589653420.

The previous prime is 11581179306787. The next prime is 11581179306859. The reversal of 11581179306842 is 24860397118511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8506841389201 + 3074337917641 = 2916649^2 + 1753379^2 .

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 as a sum of consecutive naturals, namely, 2895294826709 + ... + 2895294826712.

It is a 1-persistent number, because it is pandigital, but 2⋅11581179306842 = 23162358613684 is not.

Almost surely, 2^{11581179306842} is an apocalyptic number.

11581179306842 is a deficient number, since it is larger than the sum of its proper divisors (5790589653424).

11581179306842 is an equidigital number, since it uses as much as digits as its factorization.

11581179306842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790589653423.

The product of its (nonzero) digits is 2903040, while the sum is 56.

The spelling of 11581179306842 in words is "eleven trillion, five hundred eighty-one billion, one hundred seventy-nine million, three hundred six thousand, eight hundred forty-two".