9727973680 has 40 divisors (see below), whose sum is σ = 22714653312. Its totient is φ = 3874481664.

The previous prime is 9727973657. The next prime is 9727973683. The reversal of 9727973680 is 863797279.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (9727973683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242304 + ... + 279583.

Almost surely, 2^9727973680 is an apocalyptic number.

It is an amenable number.

9727973680 is an abundant number, since it is smaller than the sum of its proper divisors (12986679632).

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

9727973680 is a wasteful number, since it uses less digits than its factorization.

9727973680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522133 (or 522127 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 58.

The square root of 9727973680 is about 98630.4906202945. The cubic root of 9727973680 is about 2134.7193937474.

The spelling of 9727973680 in words is "nine billion, seven hundred twenty-seven million, nine hundred seventy-three thousand, six hundred eighty".