9689722752 has 64 divisors (see below), whose sum is σ = 27092995200. Its totient is φ = 3059910144.

The previous prime is 9689722729. The next prime is 9689722787. The reversal of 9689722752 is 2572279869.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 9689722692 and 9689722701.

It is a congruent number.

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, 656748 + ... + 671339.

It is an arithmetic number, because the mean of its divisors is an integer number (423328050).

Almost surely, 2^9689722752 is an apocalyptic number.

It is an amenable number.

9689722752 is an abundant number, since it is smaller than the sum of its proper divisors (17403272448).

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

9689722752 is a wasteful number, since it uses less digits than its factorization.

9689722752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328123 (or 1328111 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 57.

The square root of 9689722752 is about 98436.3893689727. The cubic root of 9689722752 is about 2131.9177737696.

The spelling of 9689722752 in words is "nine billion, six hundred eighty-nine million, seven hundred twenty-two thousand, seven hundred fifty-two".