6890729688 has 48 divisors (see below), whose sum is σ = 18667541880. Its totient is φ = 2296276224.

The previous prime is 6890729687. The next prime is 6890729719. The reversal of 6890729688 is 8869270986.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890729687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301231 + ... + 323297.

Almost surely, 2^6890729688 is an apocalyptic number.

It is an amenable number.

6890729688 is an abundant number, since it is smaller than the sum of its proper divisors (11776812192).

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

6890729688 is a wasteful number, since it uses less digits than its factorization.

6890729688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26416 (or 26409 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The square root of 6890729688 is about 83010.4191532605. The cubic root of 6890729688 is about 1902.9252895889.

The spelling of 6890729688 in words is "six billion, eight hundred ninety million, seven hundred twenty-nine thousand, six hundred eighty-eight".