1018513615018 has 16 divisors (see below), whose sum is σ = 1543828508424. Its totient is φ = 503910201600.

The previous prime is 1018513614971. The next prime is 1018513615027. The reversal of 1018513615018 is 8105163158101.

It can be written as a sum of positive squares in 4 ways, for example, as 1007969816529 + 10543798489 = 1003977^2 + 102683^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186755 + ... + 1856182.

Almost surely, 2^{1018513615018} is an apocalyptic number.

1018513615018 is a deficient number, since it is larger than the sum of its proper divisors (525314893406).

1018513615018 is a wasteful number, since it uses less digits than its factorization.

1018513615018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044697.

The product of its (nonzero) digits is 28800, while the sum is 40.

The spelling of 1018513615018 in words is "one trillion, eighteen billion, five hundred thirteen million, six hundred fifteen thousand, eighteen".