4778045812 has 24 divisors (see below), whose sum is σ = 8465937480. Its totient is φ = 2359272960.

The previous prime is 4778045809. The next prime is 4778045813. The reversal of 4778045812 is 2185408774.

It can be written as a sum of positive squares in 4 ways, for example, as 2588367376 + 2189678436 = 50876^2 + 46794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778045813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 297262 + ... + 312922.

It is an arithmetic number, because the mean of its divisors is an integer number (352747395).

Almost surely, 2^4778045812 is an apocalyptic number.

It is an amenable number.

4778045812 is a deficient number, since it is larger than the sum of its proper divisors (3687891668).

4778045812 is a wasteful number, since it uses less digits than its factorization.

4778045812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16611 (or 16609 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 46.

The square root of 4778045812 is about 69123.4100142636. The cubic root of 4778045812 is about 1684.2896108784.

The spelling of 4778045812 in words is "four billion, seven hundred seventy-eight million, forty-five thousand, eight hundred twelve".