18688483428485 has 32 divisors (see below), whose sum is σ = 24640618020480. Its totient is φ = 13522623176448.

The previous prime is 18688483428443. The next prime is 18688483428493. The reversal of 18688483428485 is 58482438488681.

It is a cyclic number.

It is not a de Polignac number, because 18688483428485 - 2⁸ = 18688483428229 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 6759362 + ... + 9114051.

It is an arithmetic number, because the mean of its divisors is an integer number (770019313140).

Almost surely, 2^{18688483428485} is an apocalyptic number.

It is an amenable number.

18688483428485 is a deficient number, since it is larger than the sum of its proper divisors (5952134591995).

18688483428485 is a wasteful number, since it uses less digits than its factorization.

18688483428485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15873797.

The product of its digits is 3019898880, while the sum is 77.

The spelling of 18688483428485 in words is "eighteen trillion, six hundred eighty-eight billion, four hundred eighty-three million, four hundred twenty-eight thousand, four hundred eighty-five".