4866794521 has 2 divisors, whose sum is σ = 4866794522. Its totient is φ = 4866794520.

The previous prime is 4866794497. The next prime is 4866794531. The reversal of 4866794521 is 1254976684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4588572121 + 278222400 = 67739^2 + 16680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4866794521 is a prime.

It is not a weakly prime, because it can be changed into another prime (4866794531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2433397260 + 2433397261.

It is an arithmetic number, because the mean of its divisors is an integer number (2433397261).

Almost surely, 2^4866794521 is an apocalyptic number.

It is an amenable number.

4866794521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4866794521 is an equidigital number, since it uses as much as digits as its factorization.

4866794521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 52.

The square root of 4866794521 is about 69762.4148162892. The cubic root of 4866794521 is about 1694.6538534320.

The spelling of 4866794521 in words is "four billion, eight hundred sixty-six million, seven hundred ninety-four thousand, five hundred twenty-one".