4478134778 has 8 divisors (see below), whose sum is σ = 7233910068. Its totient is φ = 2066831424.

The previous prime is 4478134763. The next prime is 4478134823. The reversal of 4478134778 is 8774318744.

It can be written as a sum of positive squares in 2 ways, for example, as 3378748129 + 1099386649 = 58127^2 + 33157^2 .

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

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, 86117951 + ... + 86118002.

Almost surely, 2^4478134778 is an apocalyptic number.

4478134778 is a deficient number, since it is larger than the sum of its proper divisors (2755775290).

4478134778 is a wasteful number, since it uses less digits than its factorization.

4478134778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172235968.

The product of its digits is 4214784, while the sum is 53.

The square root of 4478134778 is about 66918.8671302795. The cubic root of 4478134778 is about 1648.2853050697.

The spelling of 4478134778 in words is "four billion, four hundred seventy-eight million, one hundred thirty-four thousand, seven hundred seventy-eight".