9788983640 has 32 divisors (see below), whose sum is σ = 22784706000. Its totient is φ = 3780572544.

The previous prime is 9788983637. The next prime is 9788983651. The reversal of 9788983640 is 463898879.

It is a happy number.

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, 4218230 + ... + 4220549.

Almost surely, 2^9788983640 is an apocalyptic number.

It is an amenable number.

9788983640 is an abundant number, since it is smaller than the sum of its proper divisors (12995722360).

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

9788983640 is a wasteful number, since it uses less digits than its factorization.

9788983640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8438819 (or 8438815 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The square root of 9788983640 is about 98939.2927001199. The cubic root of 9788983640 is about 2139.1727987601.

The spelling of 9788983640 in words is "nine billion, seven hundred eighty-eight million, nine hundred eighty-three thousand, six hundred forty".