218482449486 has 16 divisors (see below), whose sum is σ = 499388456064. Its totient is φ = 62423556984.

The previous prime is 218482449431. The next prime is 218482449503. The reversal of 218482449486 is 684944284812.

It is a congruent number.

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, 2600981500 + ... + 2600981583.

It is an arithmetic number, because the mean of its divisors is an integer number (31211778504).

Almost surely, 2^218482449486 is an apocalyptic number.

218482449486 is an abundant number, since it is smaller than the sum of its proper divisors (280906006578).

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

218482449486 is a wasteful number, since it uses less digits than its factorization.

218482449486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201963095.

The product of its digits is 28311552, while the sum is 60.

The spelling of 218482449486 in words is "two hundred eighteen billion, four hundred eighty-two million, four hundred forty-nine thousand, four hundred eighty-six".