18054046819 has 2 divisors, whose sum is σ = 18054046820. Its totient is φ = 18054046818.

The previous prime is 18054046783. The next prime is 18054046847. The reversal of 18054046819 is 91864045081.

It is a strong prime.

It is an emirp because it is prime and its reverse (91864045081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18054046819 - 2¹³ = 18054038627 is a prime.

It is a super-2 number, since 2×18054046819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18054046849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9027023409 + 9027023410.

It is an arithmetic number, because the mean of its divisors is an integer number (9027023410).

Almost surely, 2^18054046819 is an apocalyptic number.

18054046819 is a deficient number, since it is larger than the sum of its proper divisors (1).

18054046819 is an equidigital number, since it uses as much as digits as its factorization.

18054046819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 18054046819 in words is "eighteen billion, fifty-four million, forty-six thousand, eight hundred nineteen".