11817479914 has 4 divisors (see below), whose sum is σ = 17726219874. Its totient is φ = 5908739956.

The previous prime is 11817479911. The next prime is 11817479917. The reversal of 11817479914 is 41997471811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41997471811 = 181 ⋅232030231.

It is an interprime number because it is at equal distance from previous prime (11817479911) and next prime (11817479917).

It can be written as a sum of positive squares in only one way, i.e., 10489241889 + 1328238025 = 102417^2 + 36445^2 .

It is not an unprimeable number, because it can be changed into a prime (11817479911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2954369977 + ... + 2954369980.

Almost surely, 2^11817479914 is an apocalyptic number.

11817479914 is a deficient number, since it is larger than the sum of its proper divisors (5908739960).

11817479914 is an equidigital number, since it uses as much as digits as its factorization.

11817479914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5908739959.

The product of its digits is 508032, while the sum is 52.

The spelling of 11817479914 in words is "eleven billion, eight hundred seventeen million, four hundred seventy-nine thousand, nine hundred fourteen".