4278659842 has 8 divisors (see below), whose sum is σ = 6418399500. Its totient is φ = 2139193344.

The previous prime is 4278659789. The next prime is 4278659857. The reversal of 4278659842 is 2489568724.

4278659842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 4074141241 + 204518601 = 63829^2 + 14301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23167 + ... + 95362.

Almost surely, 2^4278659842 is an apocalyptic number.

4278659842 is a deficient number, since it is larger than the sum of its proper divisors (2139739658).

4278659842 is a wasteful number, since it uses less digits than its factorization.

4278659842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136580.

The product of its digits is 7741440, while the sum is 55.

The square root of 4278659842 is about 65411.4656768980. The cubic root of 4278659842 is about 1623.4387962052.

The spelling of 4278659842 in words is "four billion, two hundred seventy-eight million, six hundred fifty-nine thousand, eight hundred forty-two".