9581484640 has 96 divisors (see below), whose sum is σ = 27860051520. Its totient is φ = 3032377344.

The previous prime is 9581484623. The next prime is 9581484643. The reversal of 9581484640 is 464841859.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9581484643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314475 + ... + 343594.

It is an arithmetic number, because the mean of its divisors is an integer number (290208870).

Almost surely, 2^9581484640 is an apocalyptic number.

It is an amenable number.

9581484640 is an abundant number, since it is smaller than the sum of its proper divisors (18278566880).

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

9581484640 is a wasteful number, since it uses less digits than its factorization.

9581484640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658104 (or 658096 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 9581484640 is about 97885.0583082015. The cubic root of 9581484640 is about 2123.9499044201.

The spelling of 9581484640 in words is "nine billion, five hundred eighty-one million, four hundred eighty-four thousand, six hundred forty".