6448861824 has 64 divisors (see below), whose sum is σ = 17141377440. Its totient is φ = 2148166656.

The previous prime is 6448861799. The next prime is 6448861847. The reversal of 6448861824 is 4281688446.

It is a tau number, because it is divible by the number of its divisors (64).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666042 + ... + 675654.

Almost surely, 2^6448861824 is an apocalyptic number.

6448861824 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6448861824 is an abundant number, since it is smaller than the sum of its proper divisors (10692515616).

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

6448861824 is a wasteful number, since it uses less digits than its factorization.

6448861824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11377 (or 11365 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 51.

The square root of 6448861824 is about 80304.8057341527. The cubic root of 6448861824 is about 1861.3484867984.

The spelling of 6448861824 in words is "six billion, four hundred forty-eight million, eight hundred sixty-one thousand, eight hundred twenty-four".