6444848772 has 72 divisors (see below), whose sum is σ = 16713592896. Its totient is φ = 2092837824.

The previous prime is 6444848749. The next prime is 6444848783. The reversal of 6444848772 is 2778484446.

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, 609313 + ... + 619799.

Almost surely, 2^6444848772 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 6444848772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8356796448).

6444848772 is an abundant number, since it is smaller than the sum of its proper divisors (10268744124).

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

6444848772 is a wasteful number, since it uses less digits than its factorization.

6444848772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10937 (or 10932 counting only the distinct ones).

The product of its digits is 9633792, while the sum is 54.

The square root of 6444848772 is about 80279.8154706399. The cubic root of 6444848772 is about 1860.9623081495.

The spelling of 6444848772 in words is "six billion, four hundred forty-four million, eight hundred forty-eight thousand, seven hundred seventy-two".