6728702687 has 16 divisors (see below), whose sum is σ = 7903392000. Its totient is φ = 5725926360.

The previous prime is 6728702671. The next prime is 6728702713. The reversal of 6728702687 is 7862078276.

It is not a de Polignac number, because 6728702687 - 2⁴ = 6728702671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6728702287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22889 + ... + 118242.

It is an arithmetic number, because the mean of its divisors is an integer number (493962000).

Almost surely, 2^6728702687 is an apocalyptic number.

6728702687 is a deficient number, since it is larger than the sum of its proper divisors (1174689313).

6728702687 is a wasteful number, since it uses less digits than its factorization.

6728702687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141291 (or 141277 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 53.

The square root of 6728702687 is about 82028.6699087581. The cubic root of 6728702687 is about 1887.8918560841.

The spelling of 6728702687 in words is "six billion, seven hundred twenty-eight million, seven hundred two thousand, six hundred eighty-seven".