9714522640 has 80 divisors (see below), whose sum is σ = 23055238656. Its totient is φ = 3805401600.

The previous prime is 9714522613. The next prime is 9714522647. The reversal of 9714522640 is 462254179.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 9714522593 and 9714522602.

It is not an unprimeable number, because it can be changed into a prime (9714522647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2673625 + ... + 2677255.

Almost surely, 2^9714522640 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 9714522640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11527619328).

9714522640 is an abundant number, since it is smaller than the sum of its proper divisors (13340716016).

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

9714522640 is a wasteful number, since it uses less digits than its factorization.

9714522640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328 (or 4322 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 9714522640 is about 98562.2779769218. The cubic root of 9714522640 is about 2133.7350352498.

The spelling of 9714522640 in words is "nine billion, seven hundred fourteen million, five hundred twenty-two thousand, six hundred forty".