4787478918 has 20 divisors (see below), whose sum is σ = 10727499420. Its totient is φ = 1595826252.

The previous prime is 4787478901. The next prime is 4787478929. The reversal of 4787478918 is 8198747874.

4787478918 is a `hidden beast` number, since 4 + 78 + 7 + 478 + 91 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 14776008 + ... + 14776331.

It is an arithmetic number, because the mean of its divisors is an integer number (536374971).

Almost surely, 2^4787478918 is an apocalyptic number.

4787478918 is an abundant number, since it is smaller than the sum of its proper divisors (5940020502).

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

4787478918 is a wasteful number, since it uses less digits than its factorization.

4787478918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29552353 (or 29552344 counting only the distinct ones).

The product of its digits is 25288704, while the sum is 63.

The square root of 4787478918 is about 69191.6101705980. The cubic root of 4787478918 is about 1685.3972909339.

The spelling of 4787478918 in words is "four billion, seven hundred eighty-seven million, four hundred seventy-eight thousand, nine hundred eighteen".