9654778880 has 176 divisors, whose sum is σ = 24336046080. Its totient is φ = 3670425600.

The previous prime is 9654778879. The next prime is 9654778897. The reversal of 9654778880 is 888774569.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9363965 + ... + 9364995.

Almost surely, 2^9654778880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9654778880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12168023040).

9654778880 is an abundant number, since it is smaller than the sum of its proper divisors (14681267200).

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

9654778880 is a wasteful number, since it uses less digits than its factorization.

9654778880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 62.

The square root of 9654778880 is about 98258.7343700294. The cubic root of 9654778880 is about 2129.3519213879.

The spelling of 9654778880 in words is "nine billion, six hundred fifty-four million, seven hundred seventy-eight thousand, eight hundred eighty".