18058518620747 has 16 divisors (see below), whose sum is σ = 20380323593952. Its totient is φ = 15856544574720.

The previous prime is 18058518620719. The next prime is 18058518620783. The reversal of 18058518620747 is 74702681585081.

It is a cyclic number.

It is not a de Polignac number, because 18058518620747 - 2⁸ = 18058518620491 is a prime.

It is a super-2 number, since 2×18058518620747² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18058518620747.

It is not an unprimeable number, because it can be changed into a prime (18058518620447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161877908 + ... + 161989425.

It is an arithmetic number, because the mean of its divisors is an integer number (1273770224622).

Almost surely, 2^{18058518620747} is an apocalyptic number.

18058518620747 is a deficient number, since it is larger than the sum of its proper divisors (2321804973205).

18058518620747 is a wasteful number, since it uses less digits than its factorization.

18058518620747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323867518.

The product of its (nonzero) digits is 30105600, while the sum is 62.

The spelling of 18058518620747 in words is "eighteen trillion, fifty-eight billion, five hundred eighteen million, six hundred twenty thousand, seven hundred forty-seven".