18485510049727 has 16 divisors (see below), whose sum is σ = 22049962970112. Its totient is φ = 15152294266560.

The previous prime is 18485510049709. The next prime is 18485510049739. The reversal of 18485510049727 is 72794001558481.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18485510049727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18485510049767) 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, 12668299 + ... + 14051932.

It is an arithmetic number, because the mean of its divisors is an integer number (1378122685632).

Almost surely, 2^{18485510049727} is an apocalyptic number.

18485510049727 is a deficient number, since it is larger than the sum of its proper divisors (3564452920385).

18485510049727 is a wasteful number, since it uses less digits than its factorization.

18485510049727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26724558.

The product of its (nonzero) digits is 22579200, while the sum is 61.

The spelling of 18485510049727 in words is "eighteen trillion, four hundred eighty-five billion, five hundred ten million, forty-nine thousand, seven hundred twenty-seven".