11512842259 has 4 divisors (see below), whose sum is σ = 11701577440. Its totient is φ = 11324107080.

The previous prime is 11512842169. The next prime is 11512842283. The reversal of 11512842259 is 95224821511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95224821511 = 269 ⋅353995619.

It is a cyclic number.

It is not a de Polignac number, because 11512842259 - 2¹¹ = 11512840211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11512843259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94367499 + ... + 94367620.

It is an arithmetic number, because the mean of its divisors is an integer number (2925394360).

Almost surely, 2^11512842259 is an apocalyptic number.

11512842259 is a deficient number, since it is larger than the sum of its proper divisors (188735181).

11512842259 is an equidigital number, since it uses as much as digits as its factorization.

11512842259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188735180.

The product of its digits is 57600, while the sum is 40.

The spelling of 11512842259 in words is "eleven billion, five hundred twelve million, eight hundred forty-two thousand, two hundred fifty-nine".