18141208257 has 8 divisors (see below), whose sum is σ = 24251433984. Its totient is φ = 12062560688.

The previous prime is 18141208219. The next prime is 18141208271. The reversal of 18141208257 is 75280214181.

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 18141208257 - 2¹⁰ = 18141207233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18141208207) 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, 7893198 + ... + 7895495.

It is an arithmetic number, because the mean of its divisors is an integer number (3031429248).

Almost surely, 2^18141208257 is an apocalyptic number.

It is an amenable number.

18141208257 is a deficient number, since it is larger than the sum of its proper divisors (6110225727).

18141208257 is a wasteful number, since it uses less digits than its factorization.

18141208257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15789079.

The product of its (nonzero) digits is 35840, while the sum is 39.

The spelling of 18141208257 in words is "eighteen billion, one hundred forty-one million, two hundred eight thousand, two hundred fifty-seven".