11578201909249 has 2 divisors, whose sum is σ = 11578201909250. Its totient is φ = 11578201909248.

The previous prime is 11578201909243. The next prime is 11578201909289. The reversal of 11578201909249 is 94290910287511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8406839297025 + 3171362612224 = 2899455^2 + 1780832^2 .

It is a cyclic number.

It is not a de Polignac number, because 11578201909249 - 2⁷ = 11578201909121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11578201909193 and 11578201909202.

It is not a weakly prime, because it can be changed into another prime (11578201909243) 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, 5789100954624 + 5789100954625.

It is an arithmetic number, because the mean of its divisors is an integer number (5789100954625).

Almost surely, 2^{11578201909249} is an apocalyptic number.

It is an amenable number.

11578201909249 is a deficient number, since it is larger than the sum of its proper divisors (1).

11578201909249 is an equidigital number, since it uses as much as digits as its factorization.

11578201909249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 58.

The spelling of 11578201909249 in words is "eleven trillion, five hundred seventy-eight billion, two hundred one million, nine hundred nine thousand, two hundred forty-nine".