9648643725 has 72 divisors (see below), whose sum is σ = 20271232320. Its totient is φ = 4407721920.

The previous prime is 9648643723. The next prime is 9648643729. The reversal of 9648643725 is 5273468469.

9648643725 is a `hidden beast` number, since 96 + 486 + 4 + 3 + 72 + 5 = 666.

It is not a de Polignac number, because 9648643725 - 2¹ = 9648643723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9648643721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6751311 + ... + 6752739.

Almost surely, 2^9648643725 is an apocalyptic number.

It is an amenable number.

9648643725 is an abundant number, since it is smaller than the sum of its proper divisors (10622588595).

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

9648643725 is an equidigital number, since it uses as much as digits as its factorization.

9648643725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884 (or 1444 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 9648643725 is about 98227.5100213784. The cubic root of 9648643725 is about 2128.9007916973.

The spelling of 9648643725 in words is "nine billion, six hundred forty-eight million, six hundred forty-three thousand, seven hundred twenty-five".