11182257909 has 12 divisors (see below), whose sum is σ = 17102277036. Its totient is φ = 7016318592.

The previous prime is 11182257893. The next prime is 11182257941. The reversal of 11182257909 is 90975228111.

It can be written as a sum of positive squares in 2 ways, for example, as 9001834884 + 2180423025 = 94878^2 + 46695^2 .

It is not a de Polignac number, because 11182257909 - 2⁴ = 11182257893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11182257409) 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 in 11 ways as a sum of consecutive naturals, for example, 36543174 + ... + 36543479.

It is an arithmetic number, because the mean of its divisors is an integer number (1425189753).

Almost surely, 2^11182257909 is an apocalyptic number.

It is an amenable number.

11182257909 is a deficient number, since it is larger than the sum of its proper divisors (5920019127).

11182257909 is a wasteful number, since it uses less digits than its factorization.

11182257909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73086676 (or 73086673 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 11182257909 in words is "eleven billion, one hundred eighty-two million, two hundred fifty-seven thousand, nine hundred nine".