4778130256 has 10 divisors (see below), whose sum is σ = 9257627402. Its totient is φ = 2389065120.

The previous prime is 4778130233. The next prime is 4778130289. The reversal of 4778130256 is 6520318774.

It can be written as a sum of positive squares in only one way, i.e., 4478286400 + 299843856 = 66920^2 + 17316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149316555 + ... + 149316586.

Almost surely, 2^4778130256 is an apocalyptic number.

It is an amenable number.

4778130256 is a deficient number, since it is larger than the sum of its proper divisors (4479497146).

4778130256 is a wasteful number, since it uses less digits than its factorization.

4778130256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298633149 (or 298633143 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 4778130256 is about 69124.0208321246. The cubic root of 4778130256 is about 1684.2995331577.

The spelling of 4778130256 in words is "four billion, seven hundred seventy-eight million, one hundred thirty thousand, two hundred fifty-six".