7928543448 has 96 divisors (see below), whose sum is σ = 24668186400. Its totient is φ = 2253533184.

The previous prime is 7928543437. The next prime is 7928543461. The reversal of 7928543448 is 8443458297.

7928543448 is a `hidden beast` number, since 7 + 92 + 8 + 543 + 4 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7928543394 and 7928543403.

It is a congruent number.

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, 56518 + ... + 138026.

It is an arithmetic number, because the mean of its divisors is an integer number (256960275).

Almost surely, 2^7928543448 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 7928543448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12334093200).

7928543448 is an abundant number, since it is smaller than the sum of its proper divisors (16739642952).

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

7928543448 is a wasteful number, since it uses less digits than its factorization.

7928543448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81721 (or 81714 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The square root of 7928543448 is about 89042.3688364141. The cubic root of 7928543448 is about 1994.0274695271.

The spelling of 7928543448 in words is "seven billion, nine hundred twenty-eight million, five hundred forty-three thousand, four hundred forty-eight".