11648381959 has 2 divisors, whose sum is σ = 11648381960. Its totient is φ = 11648381958.

The previous prime is 11648381939. The next prime is 11648381999. The reversal of 11648381959 is 95918384611.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11648381959 - 2⁹ = 11648381447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11648381939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5824190979 + 5824190980.

It is an arithmetic number, because the mean of its divisors is an integer number (5824190980).

Almost surely, 2^11648381959 is an apocalyptic number.

11648381959 is a deficient number, since it is larger than the sum of its proper divisors (1).

11648381959 is an equidigital number, since it uses as much as digits as its factorization.

11648381959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 55.

The spelling of 11648381959 in words is "eleven billion, six hundred forty-eight million, three hundred eighty-one thousand, nine hundred fifty-nine".