9771342928 has 20 divisors (see below), whose sum is σ = 18961999648. Its totient is φ = 4877923680.

The previous prime is 9771342883. The next prime is 9771342947. The reversal of 9771342928 is 8292431779.

It is a super-2 number, since 2×9771342928² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473826 + ... + 494017.

Almost surely, 2^9771342928 is an apocalyptic number.

It is an amenable number.

9771342928 is a deficient number, since it is larger than the sum of its proper divisors (9190656720).

9771342928 is a wasteful number, since it uses less digits than its factorization.

9771342928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968482 (or 968476 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 52.

The square root of 9771342928 is about 98850.1033282212. The cubic root of 9771342928 is about 2137.8870261104.

The spelling of 9771342928 in words is "nine billion, seven hundred seventy-one million, three hundred forty-two thousand, nine hundred twenty-eight".