9521679852 has 72 divisors (see below), whose sum is σ = 25008001200. Its totient is φ = 3050990208.

The previous prime is 9521679841. The next prime is 9521679877. The reversal of 9521679852 is 2589761259.

9521679852 is a `hidden beast` number, since 9 + 521 + 67 + 9 + 8 + 52 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219163 + ... + 258989.

It is an arithmetic number, because the mean of its divisors is an integer number (347333350).

Almost surely, 2^9521679852 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 9521679852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12504000600).

9521679852 is an abundant number, since it is smaller than the sum of its proper divisors (15486321348).

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

9521679852 is a wasteful number, since it uses less digits than its factorization.

9521679852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40095 (or 40090 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 54.

The square root of 9521679852 is about 97579.0953637099. The cubic root of 9521679852 is about 2119.5216563472.

The spelling of 9521679852 in words is "nine billion, five hundred twenty-one million, six hundred seventy-nine thousand, eight hundred fifty-two".