218130279344 has 40 divisors (see below), whose sum is σ = 444491943552. Its totient is φ = 103555445760.

The previous prime is 218130279329. The next prime is 218130279373. The reversal of 218130279344 is 443972031812.

It is a junction number, because it is equal to n+sod(n) for n = 218130279295 and 218130279304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4122569 + ... + 4175144.

Almost surely, 2^218130279344 is an apocalyptic number.

It is an amenable number.

218130279344 is an abundant number, since it is smaller than the sum of its proper divisors (226361664208).

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

218130279344 is a wasteful number, since it uses less digits than its factorization.

218130279344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297805 (or 8297799 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 218130279344 in words is "two hundred eighteen billion, one hundred thirty million, two hundred seventy-nine thousand, three hundred forty-four".