4875138778 has 8 divisors (see below), whose sum is σ = 7325383572. Its totient is φ = 2433344256.

The previous prime is 4875138767. The next prime is 4875138787. The reversal of 4875138778 is 8778315784.

It can be written as a sum of positive squares in 2 ways, for example, as 2954683449 + 1920455329 = 54357^2 + 43823^2 .

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, 2111125 + ... + 2113432.

Almost surely, 2^4875138778 is an apocalyptic number.

4875138778 is a deficient number, since it is larger than the sum of its proper divisors (2450244794).

4875138778 is a wasteful number, since it uses less digits than its factorization.

4875138778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4225136.

The product of its digits is 10536960, while the sum is 58.

The square root of 4875138778 is about 69822.1940216719. The cubic root of 4875138778 is about 1695.6218111165.

The spelling of 4875138778 in words is "four billion, eight hundred seventy-five million, one hundred thirty-eight thousand, seven hundred seventy-eight".