9881009776 has 40 divisors (see below), whose sum is σ = 21017944944. Its totient is φ = 4462748160.

The previous prime is 9881009771. The next prime is 9881009779. The reversal of 9881009776 is 6779001889.

9881009776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9881009771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151165 + ... + 206428.

Almost surely, 2^9881009776 is an apocalyptic number.

It is an amenable number.

9881009776 is an abundant number, since it is smaller than the sum of its proper divisors (11136935168).

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

9881009776 is a wasteful number, since it uses less digits than its factorization.

9881009776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357769 (or 357763 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 55.

The square root of 9881009776 is about 99403.2684372099. The cubic root of 9881009776 is about 2145.8553487096.

The spelling of 9881009776 in words is "nine billion, eight hundred eighty-one million, nine thousand, seven hundred seventy-six".