4643780550 has 96 divisors (see below), whose sum is σ = 11749631904. Its totient is φ = 1213440000.

The previous prime is 4643780521. The next prime is 4643780567. The reversal of 4643780550 is 550873464.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2899750 + ... + 2901350.

It is an arithmetic number, because the mean of its divisors is an integer number (122391999).

Almost surely, 2^4643780550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4643780550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5874815952).

4643780550 is an abundant number, since it is smaller than the sum of its proper divisors (7105851354).

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

4643780550 is a wasteful number, since it uses less digits than its factorization.

4643780550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994 (or 1989 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 42.

The square root of 4643780550 is about 68145.2900059865. The cubic root of 4643780550 is about 1668.3630498957.

The spelling of 4643780550 in words is "four billion, six hundred forty-three million, seven hundred eighty thousand, five hundred fifty".