4478788347550 has 24 divisors (see below), whose sum is σ = 9087868720872. Its totient is φ = 1628650308000.

The previous prime is 4478788347499. The next prime is 4478788347577. The reversal of 4478788347550 is 557438878744.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4478788347550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4071625221 + ... + 4071626320.

It is an arithmetic number, because the mean of its divisors is an integer number (378661196703).

Almost surely, 2^{4478788347550} is an apocalyptic number.

4478788347550 is an abundant number, since it is smaller than the sum of its proper divisors (4609080373322).

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

4478788347550 is a wasteful number, since it uses less digits than its factorization.

4478788347550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8143251564 (or 8143251559 counting only the distinct ones).

The product of its (nonzero) digits is 842956800, while the sum is 70.

The spelling of 4478788347550 in words is "four trillion, four hundred seventy-eight billion, seven hundred eighty-eight million, three hundred forty-seven thousand, five hundred fifty".