9955877768 has 32 divisors (see below), whose sum is σ = 18796822200. Its totient is φ = 4943511552.

The previous prime is 9955877731. The next prime is 9955877783. The reversal of 9955877768 is 8677785599.

It can be written as a sum of positive squares in 4 ways, for example, as 9789519364 + 166358404 = 98942^2 + 12898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685688 + ... + 700056.

Almost surely, 2^9955877768 is an apocalyptic number.

It is an amenable number.

9955877768 is a deficient number, since it is larger than the sum of its proper divisors (8840944432).

9955877768 is a wasteful number, since it uses less digits than its factorization.

9955877768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14969 (or 14965 counting only the distinct ones).

The product of its digits is 266716800, while the sum is 71.

The square root of 9955877768 is about 99779.1449552460. The cubic root of 9955877768 is about 2151.2614027878.

The spelling of 9955877768 in words is "nine billion, nine hundred fifty-five million, eight hundred seventy-seven thousand, seven hundred sixty-eight".