11826724081 has 2 divisors, whose sum is σ = 11826724082. Its totient is φ = 11826724080.

The previous prime is 11826724079. The next prime is 11826724111. The reversal of 11826724081 is 18042762811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9058280625 + 2768443456 = 95175^2 + 52616^2 .

It is a cyclic number.

It is not a de Polignac number, because 11826724081 - 2¹ = 11826724079 is a prime.

It is a super-2 number, since 2×11826724081² (a number of 21 digits) contains 22 as substring.

Together with 11826724079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11826724181) 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 as a sum of consecutive naturals, namely, 5913362040 + 5913362041.

It is an arithmetic number, because the mean of its divisors is an integer number (5913362041).

Almost surely, 2^11826724081 is an apocalyptic number.

It is an amenable number.

11826724081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11826724081 is an equidigital number, since it uses as much as digits as its factorization.

11826724081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 11826724081 in words is "eleven billion, eight hundred twenty-six million, seven hundred twenty-four thousand, eighty-one".