4784778850771 has 32 divisors (see below), whose sum is σ = 5116863260160. Its totient is φ = 4464403485696.

The previous prime is 4784778850739. The next prime is 4784778850777. The reversal of 4784778850771 is 1770588774874.

It is a cyclic number.

It is not a de Polignac number, because 4784778850771 - 2⁵ = 4784778850739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4784778850694 and 4784778850703.

It is not an unprimeable number, because it can be changed into a prime (4784778850777) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 522522325 + ... + 522531481.

It is an arithmetic number, because the mean of its divisors is an integer number (159901976880).

Almost surely, 2^{4784778850771} is an apocalyptic number.

4784778850771 is a deficient number, since it is larger than the sum of its proper divisors (332084409389).

4784778850771 is a wasteful number, since it uses less digits than its factorization.

4784778850771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12523.

The product of its (nonzero) digits is 688414720, while the sum is 73.

The spelling of 4784778850771 in words is "four trillion, seven hundred eighty-four billion, seven hundred seventy-eight million, eight hundred fifty thousand, seven hundred seventy-one".