18346279841 has 2 divisors, whose sum is σ = 18346279842. Its totient is φ = 18346279840.

The previous prime is 18346279829. The next prime is 18346279873. The reversal of 18346279841 is 14897264381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15154594816 + 3191685025 = 123104^2 + 56495^2 .

It is a cyclic number.

It is not a de Polignac number, because 18346279841 - 2²⁶ = 18279170977 is a prime.

It is not a weakly prime, because it can be changed into another prime (18343279841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9173139920 + 9173139921.

It is an arithmetic number, because the mean of its divisors is an integer number (9173139921).

Almost surely, 2^18346279841 is an apocalyptic number.

It is an amenable number.

18346279841 is a deficient number, since it is larger than the sum of its proper divisors (1).

18346279841 is an equidigital number, since it uses as much as digits as its factorization.

18346279841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 53.

The spelling of 18346279841 in words is "eighteen billion, three hundred forty-six million, two hundred seventy-nine thousand, eight hundred forty-one".