18426156041 has 2 divisors, whose sum is σ = 18426156042. Its totient is φ = 18426156040.

The previous prime is 18426156019. The next prime is 18426156043. The reversal of 18426156041 is 14065162481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16803677641 + 1622478400 = 129629^2 + 40280^2 .

It is an emirp because it is prime and its reverse (14065162481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18426156041 - 2¹⁴ = 18426139657 is a prime.

Together with 18426156043, 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 = 18426155986 and 18426156004.

It is not a weakly prime, because it can be changed into another prime (18426156043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9213078020 + 9213078021.

It is an arithmetic number, because the mean of its divisors is an integer number (9213078021).

Almost surely, 2^18426156041 is an apocalyptic number.

It is an amenable number.

18426156041 is a deficient number, since it is larger than the sum of its proper divisors (1).

18426156041 is an equidigital number, since it uses as much as digits as its factorization.

18426156041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 18426156041 in words is "eighteen billion, four hundred twenty-six million, one hundred fifty-six thousand, forty-one".