18417241893 has 8 divisors (see below), whose sum is σ = 25127399968. Its totient is φ = 11992622544.

The previous prime is 18417241889. The next prime is 18417241919. The reversal of 18417241893 is 39814271481.

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

It is not a de Polignac number, because 18417241893 - 2² = 18417241889 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18417241993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71384530 + ... + 71384787.

It is an arithmetic number, because the mean of its divisors is an integer number (3140924996).

Almost surely, 2^18417241893 is an apocalyptic number.

It is an amenable number.

18417241893 is a deficient number, since it is larger than the sum of its proper divisors (6710158075).

18417241893 is a wasteful number, since it uses less digits than its factorization.

18417241893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142769363.

The product of its digits is 387072, while the sum is 48.

The spelling of 18417241893 in words is "eighteen billion, four hundred seventeen million, two hundred forty-one thousand, eight hundred ninety-three".