9776025856128 has 128 divisors (see below), whose sum is σ = 29678868616320. Its totient is φ = 2792995209216.

The previous prime is 9776025856127. The next prime is 9776025856139. The reversal of 9776025856128 is 8216585206779.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (9776025856127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53661000 + ... + 53842872.

It is an arithmetic number, because the mean of its divisors is an integer number (231866161065).

Almost surely, 2^{9776025856128} is an apocalyptic number.

It is an amenable number.

9776025856128 is an abundant number, since it is smaller than the sum of its proper divisors (19902842760192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9776025856128 is a wasteful number, since it uses less digits than its factorization.

9776025856128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201894 (or 201882 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 9776025856128 in words is "nine trillion, seven hundred seventy-six billion, twenty-five million, eight hundred fifty-six thousand, one hundred twenty-eight".