23943294149 has 2 divisors, whose sum is σ = 23943294150. Its totient is φ = 23943294148.

The previous prime is 23943294143. The next prime is 23943294161. The reversal of 23943294149 is 94149234932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23854802500 + 88491649 = 154450^2 + 9407^2 .

It is a cyclic number.

It is not a de Polignac number, because 23943294149 - 2²⁰ = 23942245573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23943294097 and 23943294106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23943294143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11971647074 + 11971647075.

It is an arithmetic number, because the mean of its divisors is an integer number (11971647075).

Almost surely, 2^23943294149 is an apocalyptic number.

It is an amenable number.

23943294149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23943294149 is an equidigital number, since it uses as much as digits as its factorization.

23943294149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 50.

The spelling of 23943294149 in words is "twenty-three billion, nine hundred forty-three million, two hundred ninety-four thousand, one hundred forty-nine".