9677790128 has 10 divisors (see below), whose sum is σ = 18750718404. Its totient is φ = 4838895056.

The previous prime is 9677790127. The next prime is 9677790137. The reversal of 9677790128 is 8210977769.

It is a super-2 number, since 2×9677790128² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9677790127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302430926 + ... + 302430957.

Almost surely, 2^9677790128 is an apocalyptic number.

It is an amenable number.

9677790128 is a deficient number, since it is larger than the sum of its proper divisors (9072928276).

9677790128 is a wasteful number, since it uses less digits than its factorization.

9677790128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604861891 (or 604861885 counting only the distinct ones).

The product of its (nonzero) digits is 2667168, while the sum is 56.

The square root of 9677790128 is about 98375.7598598354. The cubic root of 9677790128 is about 2131.0422818137.

The spelling of 9677790128 in words is "nine billion, six hundred seventy-seven million, seven hundred ninety thousand, one hundred twenty-eight".