9651337920 has 1008 divisors, whose sum is σ = 42686935200. Its totient is φ = 2062319616.

The previous prime is 9651337919. The next prime is 9651337933. The reversal of 9651337920 is 297331569.

9651337920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

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 143 ways as a sum of consecutive naturals, for example, 64774006 + ... + 64774154.

It is an arithmetic number, because the mean of its divisors is an integer number (42348150).

Almost surely, 2^9651337920 is an apocalyptic number.

9651337920 is a gapful number since it is divisible by the number (90) 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 9651337920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21343467600).

9651337920 is an abundant number, since it is smaller than the sum of its proper divisors (33035597280).

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

9651337920 is a wasteful number, since it uses less digits than its factorization.

9651337920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 9651337920 is about 98241.2231194217. The cubic root of 9651337920 is about 2129.0989245560.

The spelling of 9651337920 in words is "nine billion, six hundred fifty-one million, three hundred thirty-seven thousand, nine hundred twenty".