6890129608 has 32 divisors (see below), whose sum is σ = 13065507000. Its totient is φ = 3406067712.

The previous prime is 6890129593. The next prime is 6890129621. The reversal of 6890129608 is 8069210986.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3924020164 + 2966109444 = 62642^2 + 54462^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862818 + ... + 870766.

Almost surely, 2^6890129608 is an apocalyptic number.

It is an amenable number.

6890129608 is a deficient number, since it is larger than the sum of its proper divisors (6175377392).

6890129608 is a wasteful number, since it uses less digits than its factorization.

6890129608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9169 (or 9165 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 6890129608 is about 83006.8045885396. The cubic root of 6890129608 is about 1902.8700491616.

The spelling of 6890129608 in words is "six billion, eight hundred ninety million, one hundred twenty-nine thousand, six hundred eight".