7648426448 has 20 divisors (see below), whose sum is σ = 15958736388. Its totient is φ = 3530042880.

The previous prime is 7648426441. The next prime is 7648426451. The reversal of 7648426448 is 8446248467.

It can be written as a sum of positive squares in 2 ways, for example, as 1568793664 + 6079632784 = 39608^2 + 77972^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7648426448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7648426441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18385433 + ... + 18385848.

Almost surely, 2^7648426448 is an apocalyptic number.

It is an amenable number.

7648426448 is an abundant number, since it is smaller than the sum of its proper divisors (8310309940).

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

7648426448 is a wasteful number, since it uses less digits than its factorization.

7648426448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36771302 (or 36771296 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 53.

The square root of 7648426448 is about 87455.2825620042. The cubic root of 7648426448 is about 1970.2622279703.

The spelling of 7648426448 in words is "seven billion, six hundred forty-eight million, four hundred twenty-six thousand, four hundred forty-eight".