18178436739119 has 2 divisors, whose sum is σ = 18178436739120. Its totient is φ = 18178436739118.

The previous prime is 18178436739079. The next prime is 18178436739121. The reversal of 18178436739119 is 91193763487181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18178436739119 - 2⁸ = 18178436738863 is a prime.

It is a super-2 number, since 2×18178436739119² (a number of 27 digits) contains 22 as substring.

Together with 18178436739121, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18178436739019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9089218369559 + 9089218369560.

It is an arithmetic number, because the mean of its divisors is an integer number (9089218369560).

Almost surely, 2^{18178436739119} is an apocalyptic number.

18178436739119 is a deficient number, since it is larger than the sum of its proper divisors (1).

18178436739119 is an equidigital number, since it uses as much as digits as its factorization.

18178436739119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54867456, while the sum is 68.

The spelling of 18178436739119 in words is "eighteen trillion, one hundred seventy-eight billion, four hundred thirty-six million, seven hundred thirty-nine thousand, one hundred nineteen".