9728448279 has 12 divisors (see below), whose sum is σ = 14257671288. Its totient is φ = 5896029040.

The previous prime is 9728448277. The next prime is 9728448287.

9728448279 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9728448279 - 2¹ = 9728448277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9728448277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13399704 + ... + 13400429.

It is an arithmetic number, because the mean of its divisors is an integer number (1188139274).

Almost surely, 2^9728448279 is an apocalyptic number.

9728448279 is a deficient number, since it is larger than the sum of its proper divisors (4529223009).

9728448279 is a wasteful number, since it uses less digits than its factorization.

9728448279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26800158 (or 26800147 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The square root of 9728448279 is about 98632.8965355880. The cubic root of 9728448279 is about 2134.7541087267.

The spelling of 9728448279 in words is "nine billion, seven hundred twenty-eight million, four hundred forty-eight thousand, two hundred seventy-nine".