11269538957 has 2 divisors, whose sum is σ = 11269538958. Its totient is φ = 11269538956.

The previous prime is 11269538947. The next prime is 11269538981. The reversal of 11269538957 is 75983596211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10070925316 + 1198613641 = 100354^2 + 34621^2 .

It is a cyclic number.

It is not a de Polignac number, because 11269538957 - 2⁴ = 11269538941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11269538947) 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, 5634769478 + 5634769479.

It is an arithmetic number, because the mean of its divisors is an integer number (5634769479).

Almost surely, 2^11269538957 is an apocalyptic number.

It is an amenable number.

11269538957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11269538957 is an equidigital number, since it uses as much as digits as its factorization.

11269538957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 56.

The spelling of 11269538957 in words is "eleven billion, two hundred sixty-nine million, five hundred thirty-eight thousand, nine hundred fifty-seven".