6448858432 has 56 divisors (see below), whose sum is σ = 13035028032. Its totient is φ = 3164851200.

The previous prime is 6448858411. The next prime is 6448858433. The reversal of 6448858432 is 2348588446.

It is a self number, because there is not a number n which added to its sum of digits gives 6448858432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448858433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055707 + ... + 1061797.

Almost surely, 2^6448858432 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 6448858432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6517514016).

6448858432 is an abundant number, since it is smaller than the sum of its proper divisors (6586169600).

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

6448858432 is a wasteful number, since it uses less digits than its factorization.

6448858432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6407 (or 6397 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 52.

The square root of 6448858432 is about 80304.7846146168. The cubic root of 6448858432 is about 1861.3481604516.

The spelling of 6448858432 in words is "six billion, four hundred forty-eight million, eight hundred fifty-eight thousand, four hundred thirty-two".