18241899841 has 8 divisors (see below), whose sum is σ = 20586470400. Its totient is φ = 16011698640.

The previous prime is 18241899773. The next prime is 18241899853. The reversal of 18241899841 is 14899814281.

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

It is a cyclic number.

It is not a de Polignac number, because 18241899841 - 2⁷ = 18241899713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18241899881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28592001 + ... + 28592638.

It is an arithmetic number, because the mean of its divisors is an integer number (2573308800).

Almost surely, 2^18241899841 is an apocalyptic number.

18241899841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18241899841 is a deficient number, since it is larger than the sum of its proper divisors (2344570559).

18241899841 is a wasteful number, since it uses less digits than its factorization.

18241899841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57184679.

The product of its digits is 1327104, while the sum is 55.

The spelling of 18241899841 in words is "eighteen billion, two hundred forty-one million, eight hundred ninety-nine thousand, eight hundred forty-one".