18207136841 has 8 divisors (see below), whose sum is σ = 18633097824. Its totient is φ = 17781291360.

The previous prime is 18207136817. The next prime is 18207136853. The reversal of 18207136841 is 14863170281.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18207136841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18207136741) 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, 346421 + ... + 395501.

It is an arithmetic number, because the mean of its divisors is an integer number (2329137228).

Almost surely, 2^18207136841 is an apocalyptic number.

It is an amenable number.

18207136841 is a deficient number, since it is larger than the sum of its proper divisors (425960983).

18207136841 is an equidigital number, since it uses as much as digits as its factorization.

18207136841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57751.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 18207136841 in words is "eighteen billion, two hundred seven million, one hundred thirty-six thousand, eight hundred forty-one".