9611479878 has 432 divisors, whose sum is σ = 28487144448. Its totient is φ = 2112739200.

The previous prime is 9611479877. The next prime is 9611479903. The reversal of 9611479878 is 8789741169.

9611479878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9611479877) 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 215 ways as a sum of consecutive naturals, for example, 310047723 + ... + 310047753.

It is an arithmetic number, because the mean of its divisors is an integer number (65942464).

Almost surely, 2^9611479878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9611479878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14243572224).

9611479878 is an abundant number, since it is smaller than the sum of its proper divisors (18875664570).

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

9611479878 is a wasteful number, since it uses less digits than its factorization.

9611479878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 86 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 60.

The square root of 9611479878 is about 98038.1552152018. The cubic root of 9611479878 is about 2126.1639669261.

The spelling of 9611479878 in words is "nine billion, six hundred eleven million, four hundred seventy-nine thousand, eight hundred seventy-eight".