18672081119 has 2 divisors, whose sum is σ = 18672081120. Its totient is φ = 18672081118.

The previous prime is 18672081091. The next prime is 18672081137. The reversal of 18672081119 is 91118027681.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18672081119 is a prime.

It is a super-2 number, since 2×18672081119² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18672081119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18672081149) 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, 9336040559 + 9336040560.

It is an arithmetic number, because the mean of its divisors is an integer number (9336040560).

Almost surely, 2^18672081119 is an apocalyptic number.

18672081119 is a deficient number, since it is larger than the sum of its proper divisors (1).

18672081119 is an equidigital number, since it uses as much as digits as its factorization.

18672081119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 44.

The spelling of 18672081119 in words is "eighteen billion, six hundred seventy-two million, eighty-one thousand, one hundred nineteen".