11817654829 has 2 divisors, whose sum is σ = 11817654830. Its totient is φ = 11817654828.

The previous prime is 11817654799. The next prime is 11817654851. The reversal of 11817654829 is 92845671811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11568078025 + 249576804 = 107555^2 + 15798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11817654829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11817054829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5908827414 + 5908827415.

It is an arithmetic number, because the mean of its divisors is an integer number (5908827415).

Almost surely, 2^11817654829 is an apocalyptic number.

It is an amenable number.

11817654829 is a deficient number, since it is larger than the sum of its proper divisors (1).

11817654829 is an equidigital number, since it uses as much as digits as its factorization.

11817654829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 52.

The spelling of 11817654829 in words is "eleven billion, eight hundred seventeen million, six hundred fifty-four thousand, eight hundred twenty-nine".