9791561708 has 12 divisors (see below), whose sum is σ = 17161239480. Its totient is φ = 4888350432.

The previous prime is 9791561693. The next prime is 9791561713. The reversal of 9791561708 is 8071651979.

It is a self number, because there is not a number n which added to its sum of digits gives 9791561708.

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, 1854641 + ... + 1859912.

It is an arithmetic number, because the mean of its divisors is an integer number (1430103290).

Almost surely, 2^9791561708 is an apocalyptic number.

It is an amenable number.

9791561708 is a deficient number, since it is larger than the sum of its proper divisors (7369677772).

9791561708 is a wasteful number, since it uses less digits than its factorization.

9791561708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715216 (or 3715214 counting only the distinct ones).

The product of its (nonzero) digits is 952560, while the sum is 53.

The square root of 9791561708 is about 98952.3203770382. The cubic root of 9791561708 is about 2139.3605761320.

The spelling of 9791561708 in words is "nine billion, seven hundred ninety-one million, five hundred sixty-one thousand, seven hundred eight".