4721795866 has 16 divisors (see below), whose sum is σ = 7525287720. Its totient is φ = 2222016960.

The previous prime is 4721795861. The next prime is 4721795867. The reversal of 4721795866 is 6685971274.

It can be written as a sum of positive squares in 4 ways, for example, as 4241265625 + 480530241 = 65125^2 + 21921^2 .

It is not an unprimeable number, because it can be changed into a prime (4721795861) 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, 230445 + ... + 250096.

Almost surely, 2^4721795866 is an apocalyptic number.

4721795866 is a deficient number, since it is larger than the sum of its proper divisors (2803491854).

4721795866 is an equidigital number, since it uses as much as digits as its factorization.

4721795866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480594 (or 480560 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 55.

The square root of 4721795866 is about 68715.3248264170. The cubic root of 4721795866 is about 1677.6540226661.

The spelling of 4721795866 in words is "four billion, seven hundred twenty-one million, seven hundred ninety-five thousand, eight hundred sixty-six".