9725578996340 has 24 divisors (see below), whose sum is σ = 20424643022112. Its totient is φ = 3890055002400.

The previous prime is 9725578996339. The next prime is 9725578996349. The reversal of 9725578996340 is 436998755279.

9725578996340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9725578996349) 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, 10585214 + ... + 11467253.

It is an arithmetic number, because the mean of its divisors is an integer number (851026792588).

Almost surely, 2^{9725578996340} is an apocalyptic number.

It is an amenable number.

9725578996340 is an abundant number, since it is smaller than the sum of its proper divisors (10699064025772).

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

9725578996340 is a wasteful number, since it uses less digits than its factorization.

9725578996340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22074527 (or 22074525 counting only the distinct ones).

The product of its (nonzero) digits is 1028764800, while the sum is 74.

The spelling of 9725578996340 in words is "nine trillion, seven hundred twenty-five billion, five hundred seventy-eight million, nine hundred ninety-six thousand, three hundred forty".