9767472640 has 80 divisors (see below), whose sum is σ = 23990495760. Its totient is φ = 3811655680.

The previous prime is 9767472607. The next prime is 9767472667. The reversal of 9767472640 is 462747679.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58431 + ... + 151489.

It is an arithmetic number, because the mean of its divisors is an integer number (299881197).

Almost surely, 2^9767472640 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 9767472640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11995247880).

9767472640 is an abundant number, since it is smaller than the sum of its proper divisors (14223023120).

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

9767472640 is an equidigital number, since it uses as much as digits as its factorization.

9767472640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93123 (or 93107 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 52.

The square root of 9767472640 is about 98830.5248392418. The cubic root of 9767472640 is about 2137.6047267635.

The spelling of 9767472640 in words is "nine billion, seven hundred sixty-seven million, four hundred seventy-two thousand, six hundred forty".