4551005778 has 96 divisors (see below), whose sum is σ = 10362344256. Its totient is φ = 1332355200.

The previous prime is 4551005777. The next prime is 4551005779. The reversal of 4551005778 is 8775001554.

It is an interprime number because it is at equal distance from previous prime (4551005777) and next prime (4551005779).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4551005777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7674250 + ... + 7674842.

It is an arithmetic number, because the mean of its divisors is an integer number (107941086).

Almost surely, 2^4551005778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4551005778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5181172128).

4551005778 is an abundant number, since it is smaller than the sum of its proper divisors (5811338478).

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

4551005778 is a wasteful number, since it uses less digits than its factorization.

4551005778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 196000, while the sum is 42.

The square root of 4551005778 is about 67461.1427267579. The cubic root of 4551005778 is about 1657.1778848033.

The spelling of 4551005778 in words is "four billion, five hundred fifty-one million, five thousand, seven hundred seventy-eight".