18058742857 has 2 divisors, whose sum is σ = 18058742858. Its totient is φ = 18058742856.

The previous prime is 18058742827. The next prime is 18058742899. The reversal of 18058742857 is 75824785081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9355532176 + 8703210681 = 96724^2 + 93291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18058742857 is a prime.

It is a super-2 number, since 2×18058742857² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18058742798 and 18058742807.

It is not a weakly prime, because it can be changed into another prime (18058742827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9029371428 + 9029371429.

It is an arithmetic number, because the mean of its divisors is an integer number (9029371429).

Almost surely, 2^18058742857 is an apocalyptic number.

It is an amenable number.

18058742857 is a deficient number, since it is larger than the sum of its proper divisors (1).

18058742857 is an equidigital number, since it uses as much as digits as its factorization.

18058742857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5017600, while the sum is 55.

The spelling of 18058742857 in words is "eighteen billion, fifty-eight million, seven hundred forty-two thousand, eight hundred fifty-seven".