4778886318 has 32 divisors (see below), whose sum is σ = 10113818112. Its totient is φ = 1502239200.

The previous prime is 4778886311. The next prime is 4778886349. The reversal of 4778886318 is 8136888774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778886311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234073 + ... + 253668.

It is an arithmetic number, because the mean of its divisors is an integer number (316056816).

Almost surely, 2^4778886318 is an apocalyptic number.

4778886318 is an abundant number, since it is smaller than the sum of its proper divisors (5334931794).

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

4778886318 is a wasteful number, since it uses less digits than its factorization.

4778886318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487840.

The product of its digits is 14450688, while the sum is 60.

The square root of 4778886318 is about 69129.4894961622. The cubic root of 4778886318 is about 1684.3883662119.

The spelling of 4778886318 in words is "four billion, seven hundred seventy-eight million, eight hundred eighty-six thousand, three hundred eighteen".