11335578949 has 2 divisors, whose sum is σ = 11335578950. Its totient is φ = 11335578948.

The previous prime is 11335578941. The next prime is 11335578973. The reversal of 11335578949 is 94987553311.

11335578949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9206402500 + 2129176449 = 95950^2 + 46143^2 .

It is a cyclic number.

It is not a de Polignac number, because 11335578949 - 2³ = 11335578941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11335578949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11335578941) by changing a digit.

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, 5667789474 + 5667789475.

It is an arithmetic number, because the mean of its divisors is an integer number (5667789475).

Almost surely, 2^11335578949 is an apocalyptic number.

It is an amenable number.

11335578949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11335578949 is an equidigital number, since it uses as much as digits as its factorization.

11335578949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 55.

The spelling of 11335578949 in words is "eleven billion, three hundred thirty-five million, five hundred seventy-eight thousand, nine hundred forty-nine".