6688734142 has 8 divisors (see below), whose sum is σ = 10055448000. Its totient is φ = 3336918144.

The previous prime is 6688734131. The next prime is 6688734181. The reversal of 6688734142 is 2414378866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3723342 + ... + 3725137.

It is an arithmetic number, because the mean of its divisors is an integer number (1256931000).

Almost surely, 2^6688734142 is an apocalyptic number.

6688734142 is a deficient number, since it is larger than the sum of its proper divisors (3366713858).

6688734142 is a wasteful number, since it uses less digits than its factorization.

6688734142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7448930.

The product of its digits is 1548288, while the sum is 49.

The square root of 6688734142 is about 81784.6815852455. The cubic root of 6688734142 is about 1884.1463996040.

The spelling of 6688734142 in words is "six billion, six hundred eighty-eight million, seven hundred thirty-four thousand, one hundred forty-two".