4851785138 has 16 divisors (see below), whose sum is σ = 7524637440. Its totient is φ = 2343826800.

The previous prime is 4851785093. The next prime is 4851785149. The reversal of 4851785138 is 8315871584.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24833 + ... + 101588.

It is an arithmetic number, because the mean of its divisors is an integer number (470289840).

Almost surely, 2^4851785138 is an apocalyptic number.

4851785138 is a deficient number, since it is larger than the sum of its proper divisors (2672852302).

4851785138 is a wasteful number, since it uses less digits than its factorization.

4851785138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127073.

The product of its digits is 1075200, while the sum is 50.

The square root of 4851785138 is about 69654.7567507058. The cubic root of 4851785138 is about 1692.9099333659.

The spelling of 4851785138 in words is "four billion, eight hundred fifty-one million, seven hundred eighty-five thousand, one hundred thirty-eight".