6818642484 has 12 divisors (see below), whose sum is σ = 15910165824. Its totient is φ = 2272880824.

The previous prime is 6818642471. The next prime is 6818642503. The reversal of 6818642484 is 4842468186.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284110092 + ... + 284110115.

It is an arithmetic number, because the mean of its divisors is an integer number (1325847152).

Almost surely, 2^6818642484 is an apocalyptic number.

It is an amenable number.

6818642484 is an abundant number, since it is smaller than the sum of its proper divisors (9091523340).

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

6818642484 is a wasteful number, since it uses less digits than its factorization.

6818642484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568220214 (or 568220212 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The square root of 6818642484 is about 82575.0718074166. The cubic root of 6818642484 is about 1896.2662115743.

The spelling of 6818642484 in words is "six billion, eight hundred eighteen million, six hundred forty-two thousand, four hundred eighty-four".