9776795607855 has 24 divisors (see below), whose sum is σ = 17001645893232. Its totient is φ = 5197306322304.

The previous prime is 9776795607851. The next prime is 9776795607913. The reversal of 9776795607855 is 5587065976779.

It is not a de Polignac number, because 9776795607855 - 2² = 9776795607851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9776795607851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353833294 + ... + 353860923.

It is an arithmetic number, because the mean of its divisors is an integer number (708401912218).

Almost surely, 2^{9776795607855} is an apocalyptic number.

9776795607855 is a deficient number, since it is larger than the sum of its proper divisors (7224850285377).

9776795607855 is a wasteful number, since it uses less digits than its factorization.

9776795607855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707694535 (or 707694532 counting only the distinct ones).

The product of its (nonzero) digits is 7001316000, while the sum is 81.

The spelling of 9776795607855 in words is "nine trillion, seven hundred seventy-six billion, seven hundred ninety-five million, six hundred seven thousand, eight hundred fifty-five".