9776880816 has 20 divisors (see below), whose sum is σ = 25256942232. Its totient is φ = 3258960256.

The previous prime is 9776880791. The next prime is 9776880847. The reversal of 9776880816 is 6180886779.

It is a self number, because there is not a number n which added to its sum of digits gives 9776880816.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101842461 + ... + 101842556.

Almost surely, 2^9776880816 is an apocalyptic number.

It is an amenable number.

9776880816 is an abundant number, since it is smaller than the sum of its proper divisors (15480061416).

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

9776880816 is a wasteful number, since it uses less digits than its factorization.

9776880816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203685028 (or 203685022 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 60.

The square root of 9776880816 is about 98878.1109042846. The cubic root of 9776880816 is about 2138.2908308228.

The spelling of 9776880816 in words is "nine billion, seven hundred seventy-six million, eight hundred eighty thousand, eight hundred sixteen".