9651294080 has 64 divisors (see below), whose sum is σ = 23148251280. Its totient is φ = 3847864320.

The previous prime is 9651294073. The next prime is 9651294083. The reversal of 9651294080 is 804921569.

It is a Cunningham number, because it is equal to 98241²-1.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9651294083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171920 + ... + 221040.

Almost surely, 2^9651294080 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 9651294080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11574125640).

9651294080 is an abundant number, since it is smaller than the sum of its proper divisors (13496957200).

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

9651294080 is a wasteful number, since it uses less digits than its factorization.

9651294080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49447 (or 49435 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 9651294080 is about 98240.9999949105. Note that the first 5 decimals coincide. The cubic root of 9651294080 is about 2129.0957008289.

The spelling of 9651294080 in words is "nine billion, six hundred fifty-one million, two hundred ninety-four thousand, eighty".