6687236484 has 72 divisors (see below), whose sum is σ = 17909918208. Its totient is φ = 2096582400.

The previous prime is 6687236483. The next prime is 6687236497. The reversal of 6687236484 is 4846327866.

6687236484 is a `hidden beast` number, since 6 + 68 + 72 + 36 + 484 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6687236484.

It is not an unprimeable number, because it can be changed into a prime (6687236483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1348209 + ... + 1353159.

It is an arithmetic number, because the mean of its divisors is an integer number (248748864).

Almost surely, 2^6687236484 is an apocalyptic number.

It is an amenable number.

6687236484 is an abundant number, since it is smaller than the sum of its proper divisors (11222681724).

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

6687236484 is a wasteful number, since it uses less digits than its factorization.

6687236484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185 (or 7180 counting only the distinct ones).

The product of its digits is 9289728, while the sum is 54.

The square root of 6687236484 is about 81775.5249692718. The cubic root of 6687236484 is about 1884.0057642460.

The spelling of 6687236484 in words is "six billion, six hundred eighty-seven million, two hundred thirty-six thousand, four hundred eighty-four".