218784641260 has 48 divisors (see below), whose sum is σ = 487197438336. Its totient is φ = 82243510272.

The previous prime is 218784641237. The next prime is 218784641321. The reversal of 218784641260 is 62146487812.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249252 + ... + 706891.

It is an arithmetic number, because the mean of its divisors is an integer number (10149946632).

Almost surely, 2^218784641260 is an apocalyptic number.

218784641260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218784641260 is an abundant number, since it is smaller than the sum of its proper divisors (268412797076).

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

218784641260 is a wasteful number, since it uses less digits than its factorization.

218784641260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956842 (or 956840 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The spelling of 218784641260 in words is "two hundred eighteen billion, seven hundred eighty-four million, six hundred forty-one thousand, two hundred sixty".