18058433947 has 2 divisors, whose sum is σ = 18058433948. Its totient is φ = 18058433946.

The previous prime is 18058433927. The next prime is 18058433959. The reversal of 18058433947 is 74933485081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18058433947 - 2⁷ = 18058433819 is a prime.

It is a super-2 number, since 2×18058433947² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18058433894 and 18058433903.

It is not a weakly prime, because it can be changed into another prime (18058433917) 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, 9029216973 + 9029216974.

It is an arithmetic number, because the mean of its divisors is an integer number (9029216974).

Almost surely, 2^18058433947 is an apocalyptic number.

18058433947 is a deficient number, since it is larger than the sum of its proper divisors (1).

18058433947 is an equidigital number, since it uses as much as digits as its factorization.

18058433947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 18058433947 in words is "eighteen billion, fifty-eight million, four hundred thirty-three thousand, nine hundred forty-seven".