6687338632 has 16 divisors (see below), whose sum is σ = 13503280140. Its totient is φ = 3086463936.

The previous prime is 6687338627. The next prime is 6687338633. The reversal of 6687338632 is 2368337866.

It can be written as a sum of positive squares in 2 ways, for example, as 5433753796 + 1253584836 = 73714^2 + 35406^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 6687338632.

It is not an unprimeable number, because it can be changed into a prime (6687338633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32150563 + ... + 32150770.

Almost surely, 2^6687338632 is an apocalyptic number.

It is an amenable number.

6687338632 is an abundant number, since it is smaller than the sum of its proper divisors (6815941508).

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

6687338632 is a wasteful number, since it uses less digits than its factorization.

6687338632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64301352 (or 64301348 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 52.

The square root of 6687338632 is about 81776.1495302879. The cubic root of 6687338632 is about 1884.0153569699.

The spelling of 6687338632 in words is "six billion, six hundred eighty-seven million, three hundred thirty-eight thousand, six hundred thirty-two".