18434465493 has 8 divisors (see below), whose sum is σ = 24600646656. Its totient is φ = 12278964000.

The previous prime is 18434465471. The next prime is 18434465501. The reversal of 18434465493 is 39456443481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18434465493 - 2⁵ = 18434465461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18434445493) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2665888 + ... + 2672793.

It is an arithmetic number, because the mean of its divisors is an integer number (3075080832).

Almost surely, 2^18434465493 is an apocalyptic number.

It is an amenable number.

18434465493 is a deficient number, since it is larger than the sum of its proper divisors (6166181163).

18434465493 is a wasteful number, since it uses less digits than its factorization.

18434465493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339835.

The product of its digits is 4976640, while the sum is 51.

The spelling of 18434465493 in words is "eighteen billion, four hundred thirty-four million, four hundred sixty-five thousand, four hundred ninety-three".