4813788521 has 2 divisors, whose sum is σ = 4813788522. Its totient is φ = 4813788520.

The previous prime is 4813788451. The next prime is 4813788523. The reversal of 4813788521 is 1258873184.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3447451225 + 1366337296 = 58715^2 + 36964^2 .

It is a cyclic number.

It is not a de Polignac number, because 4813788521 - 2¹⁰ = 4813787497 is a prime.

It is a super-2 number, since 2×4813788521² = 46345119849822734882, which contains 22 as substring.

Together with 4813788523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4813788523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2406894260 + 2406894261.

It is an arithmetic number, because the mean of its divisors is an integer number (2406894261).

Almost surely, 2^4813788521 is an apocalyptic number.

It is an amenable number.

4813788521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4813788521 is an equidigital number, since it uses as much as digits as its factorization.

4813788521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 430080, while the sum is 47.

The square root of 4813788521 is about 69381.4710207271. The cubic root of 4813788521 is about 1688.4790210073.

The spelling of 4813788521 in words is "four billion, eight hundred thirteen million, seven hundred eighty-eight thousand, five hundred twenty-one".