9477979776 has 112 divisors (see below), whose sum is σ = 28310197410. Its totient is φ = 3159295488.

The previous prime is 9477979739. The next prime is 9477979793. The reversal of 9477979776 is 6779797749.

9477979776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7881178176 + 1596801600 = 88776^2 + 39960^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 42526 + ... + 144098.

Almost surely, 2^9477979776 is an apocalyptic number.

9477979776 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9477979776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14155098705).

9477979776 is an abundant number, since it is smaller than the sum of its proper divisors (18832217634).

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

9477979776 is an equidigital number, since it uses as much as digits as its factorization.

9477979776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101605 (or 101578 counting only the distinct ones).

The product of its digits is 294055272, while the sum is 72.

The square root of 9477979776 is about 97354.9165476505. The cubic root of 9477979776 is about 2116.2741439853.

The spelling of 9477979776 in words is "nine billion, four hundred seventy-seven million, nine hundred seventy-nine thousand, seven hundred seventy-six".