9840520140528 has 160 divisors (see below), whose sum is σ = 31705961402880. Its totient is φ = 2555026145280.

The previous prime is 9840520140527. The next prime is 9840520140541. The reversal of 9840520140528 is 8250410250489.

9840520140528 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9840520140528² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9840520140527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9443476 + ... + 10433612.

It is an arithmetic number, because the mean of its divisors is an integer number (198162258768).

Almost surely, 2^{9840520140528} 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 9840520140528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15852980701440).

9840520140528 is an abundant number, since it is smaller than the sum of its proper divisors (21865441262352).

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

9840520140528 is a wasteful number, since it uses less digits than its factorization.

9840520140528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992855 (or 992849 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 48.

The spelling of 9840520140528 in words is "nine trillion, eight hundred forty billion, five hundred twenty million, one hundred forty thousand, five hundred twenty-eight".