9725215848 has 32 divisors (see below), whose sum is σ = 24711617760. Its totient is φ = 3188594880.

The previous prime is 9725215847. The next prime is 9725215861. The reversal of 9725215848 is 8485125279.

It is a self number, because there is not a number n which added to its sum of digits gives 9725215848.

It is not an unprimeable number, because it can be changed into a prime (9725215847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319990 + ... + 3322917.

It is an arithmetic number, because the mean of its divisors is an integer number (772238055).

Almost surely, 2^9725215848 is an apocalyptic number.

It is an amenable number.

9725215848 is an abundant number, since it is smaller than the sum of its proper divisors (14986401912).

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

9725215848 is a wasteful number, since it uses less digits than its factorization.

9725215848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6642977 (or 6642973 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 51.

The square root of 9725215848 is about 98616.5090033104. The cubic root of 9725215848 is about 2134.5176472493.

The spelling of 9725215848 in words is "nine billion, seven hundred twenty-five million, two hundred fifteen thousand, eight hundred forty-eight".