18073408039 has 2 divisors, whose sum is σ = 18073408040. Its totient is φ = 18073408038.

The previous prime is 18073407977. The next prime is 18073408051. The reversal of 18073408039 is 93080437081.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18073408039 - 2¹³ = 18073399847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18073407986 and 18073408004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18073408069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9036704019 + 9036704020.

It is an arithmetic number, because the mean of its divisors is an integer number (9036704020).

Almost surely, 2^18073408039 is an apocalyptic number.

18073408039 is a deficient number, since it is larger than the sum of its proper divisors (1).

18073408039 is an equidigital number, since it uses as much as digits as its factorization.

18073408039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 18073408039 in words is "eighteen billion, seventy-three million, four hundred eight thousand, thirty-nine".