4678086728 has 32 divisors (see below), whose sum is σ = 10026668160. Its totient is φ = 2004455040.

The previous prime is 4678086727. The next prime is 4678086761. The reversal of 4678086728 is 8276808764.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (4678086727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481325 + ... + 490947.

It is an arithmetic number, because the mean of its divisors is an integer number (313333380).

Almost surely, 2^4678086728 is an apocalyptic number.

It is an amenable number.

4678086728 is an abundant number, since it is smaller than the sum of its proper divisors (5348581432).

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

4678086728 is a wasteful number, since it uses less digits than its factorization.

4678086728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317 (or 18313 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 56.

The square root of 4678086728 is about 68396.5403218613. The cubic root of 4678086728 is about 1672.4613481221.

The spelling of 4678086728 in words is "four billion, six hundred seventy-eight million, eighty-six thousand, seven hundred twenty-eight".