4478889955650 has 192 divisors, whose sum is σ = 12511318081536. Its totient is φ = 1050513984000.

The previous prime is 4478889955649. The next prime is 4478889955669. The reversal of 4478889955650 is 565599888744.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 293439919 + ... + 293455181.

It is an arithmetic number, because the mean of its divisors is an integer number (65163115008).

Almost surely, 2^{4478889955650} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4478889955650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6255659040768).

4478889955650 is an abundant number, since it is smaller than the sum of its proper divisors (8032428125886).

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

4478889955650 is a wasteful number, since it uses less digits than its factorization.

4478889955650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21057 (or 21052 counting only the distinct ones).

The product of its (nonzero) digits is 3483648000, while the sum is 78.

The spelling of 4478889955650 in words is "four trillion, four hundred seventy-eight billion, eight hundred eighty-nine million, nine hundred fifty-five thousand, six hundred fifty".