218490052411 has 4 divisors (see below), whose sum is σ = 218615551024. Its totient is φ = 218364553800.

The previous prime is 218490052381. The next prime is 218490052421. The reversal of 218490052411 is 114250094812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 218490052411 - 2³⁷ = 81051098939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218490052421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62746695 + ... + 62750176.

It is an arithmetic number, because the mean of its divisors is an integer number (54653887756).

Almost surely, 2^218490052411 is an apocalyptic number.

218490052411 is a deficient number, since it is larger than the sum of its proper divisors (125498613).

218490052411 is a wasteful number, since it uses less digits than its factorization.

218490052411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125498612.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 218490052411 in words is "two hundred eighteen billion, four hundred ninety million, fifty-two thousand, four hundred eleven".