6444648932 has 12 divisors (see below), whose sum is σ = 11941555500. Its totient is φ = 3032775936.

The previous prime is 6444648929. The next prime is 6444648941. The reversal of 6444648932 is 2398464446.

It can be written as a sum of positive squares in 2 ways, for example, as 2570084416 + 3874564516 = 50696^2 + 62246^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47387057 + ... + 47387192.

It is an arithmetic number, because the mean of its divisors is an integer number (995129625).

Almost surely, 2^6444648932 is an apocalyptic number.

It is an amenable number.

6444648932 is a deficient number, since it is larger than the sum of its proper divisors (5496906568).

6444648932 is a wasteful number, since it uses less digits than its factorization.

6444648932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94774270 (or 94774268 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 50.

The square root of 6444648932 is about 80278.5708143836. The cubic root of 6444648932 is about 1860.9430732244.

The spelling of 6444648932 in words is "six billion, four hundred forty-four million, six hundred forty-eight thousand, nine hundred thirty-two".