4778902178 has 16 divisors (see below), whose sum is σ = 7292151360. Its totient is φ = 2348210736.

The previous prime is 4778902171. The next prime is 4778902217. The reversal of 4778902178 is 8712098774.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4778902171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682451 + ... + 689417.

It is an arithmetic number, because the mean of its divisors is an integer number (455759460).

Almost surely, 2^4778902178 is an apocalyptic number.

4778902178 is a deficient number, since it is larger than the sum of its proper divisors (2513249182).

4778902178 is a wasteful number, since it uses less digits than its factorization.

4778902178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12841.

The product of its (nonzero) digits is 1580544, while the sum is 53.

The square root of 4778902178 is about 69129.6042083274. The cubic root of 4778902178 is about 1684.3902295728.

The spelling of 4778902178 in words is "four billion, seven hundred seventy-eight million, nine hundred two thousand, one hundred seventy-eight".