218500738339 has 8 divisors (see below), whose sum is σ = 235312827680. Its totient is φ = 201689269056.

The previous prime is 218500738331. The next prime is 218500738363. The reversal of 218500738339 is 933837005812.

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 218500738339 - 2³ = 218500738331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 218500738292 and 218500738301.

It is not an unprimeable number, because it can be changed into a prime (218500738331) 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, 790519 + ... + 1030495.

It is an arithmetic number, because the mean of its divisors is an integer number (29414103460).

Almost surely, 2^218500738339 is an apocalyptic number.

218500738339 is a deficient number, since it is larger than the sum of its proper divisors (16812089341).

218500738339 is a wasteful number, since it uses less digits than its factorization.

218500738339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310029.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 218500738339 in words is "two hundred eighteen billion, five hundred million, seven hundred thirty-eight thousand, three hundred thirty-nine".