9961171924 has 12 divisors (see below), whose sum is σ = 19016782848. Its totient is φ = 4527805400.

The previous prime is 9961171907. The next prime is 9961171939. The reversal of 9961171924 is 4291711699.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113195092 + ... + 113195179.

It is an arithmetic number, because the mean of its divisors is an integer number (1584731904).

Almost surely, 2^9961171924 is an apocalyptic number.

It is an amenable number.

9961171924 is a deficient number, since it is larger than the sum of its proper divisors (9055610924).

9961171924 is a wasteful number, since it uses less digits than its factorization.

9961171924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226390286 (or 226390284 counting only the distinct ones).

The product of its digits is 244944, while the sum is 49.

The square root of 9961171924 is about 99805.6708008117. The cubic root of 9961171924 is about 2151.6426547999.

The spelling of 9961171924 in words is "nine billion, nine hundred sixty-one million, one hundred seventy-one thousand, nine hundred twenty-four".