6009721688 has 8 divisors (see below), whose sum is σ = 11268228180. Its totient is φ = 3004860840.

The previous prime is 6009721673. The next prime is 6009721691. The reversal of 6009721688 is 8861279006.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×6009721688² = 72233509534435138688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375607598 + ... + 375607613.

Almost surely, 2^6009721688 is an apocalyptic number.

It is an amenable number.

6009721688 is a deficient number, since it is larger than the sum of its proper divisors (5258506492).

6009721688 is a wasteful number, since it uses less digits than its factorization.

6009721688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751215217 (or 751215213 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 6009721688 is about 77522.3947514523. The cubic root of 6009721688 is about 1818.1014787780.

The spelling of 6009721688 in words is "six billion, nine million, seven hundred twenty-one thousand, six hundred eighty-eight".