18080376439 has 2 divisors, whose sum is σ = 18080376440. Its totient is φ = 18080376438.

The previous prime is 18080376389. The next prime is 18080376527. The reversal of 18080376439 is 93467308081.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18080376439 - 2¹¹ = 18080374391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18080376392 and 18080376401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18080374439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9040188219 + 9040188220.

It is an arithmetic number, because the mean of its divisors is an integer number (9040188220).

Almost surely, 2^18080376439 is an apocalyptic number.

18080376439 is a deficient number, since it is larger than the sum of its proper divisors (1).

18080376439 is an equidigital number, since it uses as much as digits as its factorization.

18080376439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 18080376439 in words is "eighteen billion, eighty million, three hundred seventy-six thousand, four hundred thirty-nine".