9961730604 has 72 divisors (see below), whose sum is σ = 29033091360. Its totient is φ = 2821012992.

The previous prime is 9961730561. The next prime is 9961730617. The reversal of 9961730604 is 4060371699.

9961730604 is a `hidden beast` number, since 9 + 9 + 6 + 1 + 7 + 30 + 604 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 9961730604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146439 + ... + 203390.

It is an arithmetic number, because the mean of its divisors is an integer number (403237380).

Almost surely, 2^9961730604 is an apocalyptic number.

It is an amenable number.

9961730604 is an abundant number, since it is smaller than the sum of its proper divisors (19071360756).

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

9961730604 is a wasteful number, since it uses less digits than its factorization.

9961730604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349959 (or 349954 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 9961730604 is about 99808.4696005304. The cubic root of 9961730604 is about 2151.6828795597.

The spelling of 9961730604 in words is "nine billion, nine hundred sixty-one million, seven hundred thirty thousand, six hundred four".