218049144137 has 16 divisors (see below), whose sum is σ = 240413292672. Its totient is φ = 196110097920.

The previous prime is 218049144127. The next prime is 218049144139. The reversal of 218049144137 is 731441940812.

It is not a de Polignac number, because 218049144137 - 2³⁰ = 216975402313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218049144139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2947868 + ... + 3020930.

It is an arithmetic number, because the mean of its divisors is an integer number (15025830792).

Almost surely, 2^218049144137 is an apocalyptic number.

It is an amenable number.

218049144137 is a deficient number, since it is larger than the sum of its proper divisors (22364148535).

218049144137 is a wasteful number, since it uses less digits than its factorization.

218049144137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75968.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 218049144137 in words is "two hundred eighteen billion, forty-nine million, one hundred forty-four thousand, one hundred thirty-seven".