11137291609 has 2 divisors, whose sum is σ = 11137291610. Its totient is φ = 11137291608.

The previous prime is 11137291603. The next prime is 11137291637. The reversal of 11137291609 is 90619273111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6476225625 + 4661065984 = 80475^2 + 68272^2 .

It is a cyclic number.

It is not a de Polignac number, because 11137291609 - 2¹¹ = 11137289561 is a prime.

It is not a weakly prime, because it can be changed into another prime (11137291603) 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 as a sum of consecutive naturals, namely, 5568645804 + 5568645805.

It is an arithmetic number, because the mean of its divisors is an integer number (5568645805).

Almost surely, 2^11137291609 is an apocalyptic number.

It is an amenable number.

11137291609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11137291609 is an equidigital number, since it uses as much as digits as its factorization.

11137291609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 40.

The spelling of 11137291609 in words is "eleven billion, one hundred thirty-seven million, two hundred ninety-one thousand, six hundred nine".