18653433144485 has 24 divisors (see below), whose sum is σ = 23840371408896. Its totient is φ = 14008266625280.

The previous prime is 18653433144449. The next prime is 18653433144497. The reversal of 18653433144485 is 58444133435681.

It is not a de Polignac number, because 18653433144485 - 2²⁶ = 18653366035621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16298981 + ... + 17405850.

It is an arithmetic number, because the mean of its divisors is an integer number (993348808704).

Almost surely, 2^{18653433144485} is an apocalyptic number.

It is an amenable number.

18653433144485 is a deficient number, since it is larger than the sum of its proper divisors (5186938264411).

18653433144485 is a wasteful number, since it uses less digits than its factorization.

18653433144485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33705253 (or 33705236 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 59.

The spelling of 18653433144485 in words is "eighteen trillion, six hundred fifty-three billion, four hundred thirty-three million, one hundred forty-four thousand, four hundred eighty-five".