6344388672 has 56 divisors (see below), whose sum is σ = 16848734400. Its totient is φ = 2106917376.

The previous prime is 6344388647. The next prime is 6344388697. The reversal of 6344388672 is 2768834436.

It is an interprime number because it is at equal distance from previous prime (6344388647) and next prime (6344388697).

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, 9772 + ... + 113067.

Almost surely, 2^6344388672 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 6344388672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8424367200).

6344388672 is an abundant number, since it is smaller than the sum of its proper divisors (10504345728).

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

6344388672 is a wasteful number, since it uses less digits than its factorization.

6344388672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123123 (or 123113 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The square root of 6344388672 is about 79651.6708675970. The cubic root of 6344388672 is about 1851.2422795226.

The spelling of 6344388672 in words is "six billion, three hundred forty-four million, three hundred eighty-eight thousand, six hundred seventy-two".