4399646068608 has 256 divisors, whose sum is σ = 13412342499840. Its totient is φ = 1251753984000.

The previous prime is 4399646068603. The next prime is 4399646068633. The reversal of 4399646068608 is 8068606469934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4399646068603) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1099634608 + ... + 1099638608.

It is an arithmetic number, because the mean of its divisors is an integer number (52391962890).

Almost surely, 2^{4399646068608} is an apocalyptic number.

4399646068608 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4399646068608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6706171249920).

4399646068608 is an abundant number, since it is smaller than the sum of its proper divisors (9012696431232).

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

4399646068608 is a wasteful number, since it uses less digits than its factorization.

4399646068608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5633 counting only the distinct ones).

The product of its (nonzero) digits is 322486272, while the sum is 69.

The spelling of 4399646068608 in words is "four trillion, three hundred ninety-nine billion, six hundred forty-six million, sixty-eight thousand, six hundred eight".