9756099961 has 8 divisors (see below), whose sum is σ = 10332100584. Its totient is φ = 9180334080.

The previous prime is 9756099929. The next prime is 9756099967. The reversal of 9756099961 is 1699906579.

It can be written as a sum of positive squares in 4 ways, for example, as 2911681600 + 6844418361 = 53960^2 + 82731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9756099961 - 2⁵ = 9756099929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9756099961.

It is not an unprimeable number, because it can be changed into a prime (9756099967) 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, 30801 + ... + 143041.

It is an arithmetic number, because the mean of its divisors is an integer number (1291512573).

Almost surely, 2^9756099961 is an apocalyptic number.

It is an amenable number.

9756099961 is a deficient number, since it is larger than the sum of its proper divisors (576000623).

9756099961 is a wasteful number, since it uses less digits than its factorization.

9756099961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117371.

The product of its (nonzero) digits is 8266860, while the sum is 61.

The square root of 9756099961 is about 98772.9718141557. The cubic root of 9756099961 is about 2136.7747702144.

The spelling of 9756099961 in words is "nine billion, seven hundred fifty-six million, ninety-nine thousand, nine hundred sixty-one".