11819155841 has 2 divisors, whose sum is σ = 11819155842. Its totient is φ = 11819155840.

The previous prime is 11819155819. The next prime is 11819155867. The reversal of 11819155841 is 14855191811.

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., 8064040000 + 3755115841 = 89800^2 + 61279^2 .

It is a cyclic number.

It is not a de Polignac number, because 11819155841 - 2²² = 11814961537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11819155792 and 11819155801.

It is not a weakly prime, because it can be changed into another prime (11819355841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5909577920 + 5909577921.

It is an arithmetic number, because the mean of its divisors is an integer number (5909577921).

Almost surely, 2^11819155841 is an apocalyptic number.

It is an amenable number.

11819155841 is a deficient number, since it is larger than the sum of its proper divisors (1).

11819155841 is an equidigital number, since it uses as much as digits as its factorization.

11819155841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 44.

The spelling of 11819155841 in words is "eleven billion, eight hundred nineteen million, one hundred fifty-five thousand, eight hundred forty-one".