9487147537920 has 480 divisors, whose sum is σ = 32870455754400. Its totient is φ = 2333254090752.

The previous prime is 9487147537897. The next prime is 9487147537991. The reversal of 9487147537920 is 297357417849.

It is a tau number, because it is divible by the number of its divisors (480).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1932600426 + ... + 1932605334.

It is an arithmetic number, because the mean of its divisors is an integer number (68480116155).

Almost surely, 2^{9487147537920} 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 9487147537920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16435227877200).

9487147537920 is an abundant number, since it is smaller than the sum of its proper divisors (23383308216480).

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

9487147537920 is a wasteful number, since it uses less digits than its factorization.

9487147537920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450 (or 6421 counting only the distinct ones).

The product of its (nonzero) digits is 106686720, while the sum is 66.

The spelling of 9487147537920 in words is "nine trillion, four hundred eighty-seven billion, one hundred forty-seven million, five hundred thirty-seven thousand, nine hundred twenty".