18241003961 has 8 divisors (see below), whose sum is σ = 19316260584. Its totient is φ = 17165998080.

The previous prime is 18241003951. The next prime is 18241004003. The reversal of 18241003961 is 16930014281.

It can be written as a sum of positive squares in 4 ways, for example, as 10476750736 + 7764253225 = 102356^2 + 88115^2 .

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 18241003961 - 2⁶ = 18241003897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18241003951) 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, 99041 + ... + 215153.

It is an arithmetic number, because the mean of its divisors is an integer number (2414532573).

Almost surely, 2^18241003961 is an apocalyptic number.

It is an amenable number.

18241003961 is a deficient number, since it is larger than the sum of its proper divisors (1075256623).

18241003961 is a wasteful number, since it uses less digits than its factorization.

18241003961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125371.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 18241003961 in words is "eighteen billion, two hundred forty-one million, three thousand, nine hundred sixty-one".