218030238288 has 30 divisors (see below), whose sum is σ = 610181847834. Its totient is φ = 72676746048.

The previous prime is 218030238277. The next prime is 218030238301. The reversal of 218030238288 is 882832030812.

It can be written as a sum of positive squares in only one way, i.e., 154411274304 + 63618963984 = 392952^2 + 252228^2 .

It is a super-2 number, since 2×218030238288² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 757049295 + ... + 757049582.

Almost surely, 2^218030238288 is an apocalyptic number.

It is an amenable number.

218030238288 is an abundant number, since it is smaller than the sum of its proper divisors (392151609546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218030238288 is a wasteful number, since it uses less digits than its factorization.

218030238288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514098891 (or 1514098882 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The spelling of 218030238288 in words is "two hundred eighteen billion, thirty million, two hundred thirty-eight thousand, two hundred eighty-eight".