4506978918 has 16 divisors (see below), whose sum is σ = 9707339376. Its totient is φ = 1386762720.

The previous prime is 4506978913. The next prime is 4506978929. The reversal of 4506978918 is 8198796054.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4506978913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28890813 + ... + 28890968.

It is an arithmetic number, because the mean of its divisors is an integer number (606708711).

Almost surely, 2^4506978918 is an apocalyptic number.

4506978918 is an abundant number, since it is smaller than the sum of its proper divisors (5200360458).

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

4506978918 is a wasteful number, since it uses less digits than its factorization.

4506978918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57781799.

The product of its (nonzero) digits is 4354560, while the sum is 57.

The square root of 4506978918 is about 67134.0369559287. The cubic root of 4506978918 is about 1651.8166606352.

The spelling of 4506978918 in words is "four billion, five hundred six million, nine hundred seventy-eight thousand, nine hundred eighteen".