9772065880 has 32 divisors (see below), whose sum is σ = 22001536800. Its totient is φ = 3906268416.

The previous prime is 9772065869. The next prime is 9772065899. The reversal of 9772065880 is 885602779.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

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, 17445 + ... + 140884.

It is an arithmetic number, because the mean of its divisors is an integer number (687548025).

Almost surely, 2^9772065880 is an apocalyptic number.

It is an amenable number.

9772065880 is an abundant number, since it is smaller than the sum of its proper divisors (12229470920).

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

9772065880 is a wasteful number, since it uses less digits than its factorization.

9772065880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159883 (or 159879 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 9772065880 is about 98853.7600701157. The cubic root of 9772065880 is about 2137.9397500671.

The spelling of 9772065880 in words is "nine billion, seven hundred seventy-two million, sixty-five thousand, eight hundred eighty".