23659236149 has 2 divisors, whose sum is σ = 23659236150. Its totient is φ = 23659236148.

The previous prime is 23659236131. The next prime is 23659236151. The reversal of 23659236149 is 94163295632.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13151961124 + 10507275025 = 114682^2 + 102505^2 .

It is a cyclic number.

It is not a de Polignac number, because 23659236149 - 2²⁴ = 23642458933 is a prime.

Together with 23659236151, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 23659236097 and 23659236106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23659236749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11829618074 + 11829618075.

It is an arithmetic number, because the mean of its divisors is an integer number (11829618075).

Almost surely, 2^23659236149 is an apocalyptic number.

It is an amenable number.

23659236149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23659236149 is an equidigital number, since it uses as much as digits as its factorization.

23659236149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 50.

The spelling of 23659236149 in words is "twenty-three billion, six hundred fifty-nine million, two hundred thirty-six thousand, one hundred forty-nine".