9489506520 has 256 divisors, whose sum is σ = 32438568960. Its totient is φ = 2203103232.

The previous prime is 9489506479. The next prime is 9489506531. The reversal of 9489506520 is 256059849.

It is a self number, because there is not a number n which added to its sum of digits gives 9489506520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2617429 + ... + 2621051.

It is an arithmetic number, because the mean of its divisors is an integer number (126713160).

Almost surely, 2^9489506520 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 9489506520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16219284480).

9489506520 is an abundant number, since it is smaller than the sum of its proper divisors (22949062440).

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

9489506520 is a wasteful number, since it uses less digits than its factorization.

9489506520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3746 (or 3742 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 48.

The square root of 9489506520 is about 97414.0981583261. The cubic root of 9489506520 is about 2117.1317060622.

The spelling of 9489506520 in words is "nine billion, four hundred eighty-nine million, five hundred six thousand, five hundred twenty".