4813794121 has 2 divisors, whose sum is σ = 4813794122. Its totient is φ = 4813794120.

The previous prime is 4813794119. The next prime is 4813794149. The reversal of 4813794121 is 1214973184.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4126777600 + 687016521 = 64240^2 + 26211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4813794121 - 2¹ = 4813794119 is a prime.

It is a super-2 number, since 2×4813794121² = 46345227678748325282, which contains 22 as substring.

Together with 4813794119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4813794101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2406897060 + 2406897061.

It is an arithmetic number, because the mean of its divisors is an integer number (2406897061).

Almost surely, 2^4813794121 is an apocalyptic number.

It is an amenable number.

4813794121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4813794121 is an equidigital number, since it uses as much as digits as its factorization.

4813794121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 4813794121 is about 69381.5113773115. The cubic root of 4813794121 is about 1688.4796757569.

The spelling of 4813794121 in words is "four billion, eight hundred thirteen million, seven hundred ninety-four thousand, one hundred twenty-one".