11817419159 has 32 divisors (see below), whose sum is σ = 15587174400. Its totient is φ = 8701748352.

The previous prime is 11817419147. The next prime is 11817419167. The reversal of 11817419159 is 95191471811.

It is a cyclic number.

It is not a de Polignac number, because 11817419159 - 2¹⁶ = 11817353623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11817419129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1142 + ... + 153740.

It is an arithmetic number, because the mean of its divisors is an integer number (487099200).

Almost surely, 2^11817419159 is an apocalyptic number.

11817419159 is a deficient number, since it is larger than the sum of its proper divisors (3769755241).

11817419159 is a wasteful number, since it uses less digits than its factorization.

11817419159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152679.

The product of its digits is 90720, while the sum is 47.

The spelling of 11817419159 in words is "eleven billion, eight hundred seventeen million, four hundred nineteen thousand, one hundred fifty-nine".