4278636484 has 12 divisors (see below), whose sum is σ = 7488635308. Its totient is φ = 2139026400.

The previous prime is 4278636421. The next prime is 4278636497. The reversal of 4278636484 is 4846368724.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2393166400 + 1885470084 = 48920^2 + 43422^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38127 + ... + 100054.

Almost surely, 2^4278636484 is an apocalyptic number.

It is an amenable number.

4278636484 is a deficient number, since it is larger than the sum of its proper divisors (3209998824).

4278636484 is a wasteful number, since it uses less digits than its factorization.

4278636484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145926 (or 145924 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 52.

The square root of 4278636484 is about 65411.2871299747. The cubic root of 4278636484 is about 1623.4358419817.

The spelling of 4278636484 in words is "four billion, two hundred seventy-eight million, six hundred thirty-six thousand, four hundred eighty-four".