4663536421 has 2 divisors, whose sum is σ = 4663536422. Its totient is φ = 4663536420.

The previous prime is 4663536389. The next prime is 4663536443. The reversal of 4663536421 is 1246353664.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4663524100 + 12321 = 68290^2 + 111^2 .

It is a cyclic number.

It is not a de Polignac number, because 4663536421 - 2⁵ = 4663536389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4663536461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2331768210 + 2331768211.

It is an arithmetic number, because the mean of its divisors is an integer number (2331768211).

Almost surely, 2^4663536421 is an apocalyptic number.

It is an amenable number.

4663536421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4663536421 is an equidigital number, since it uses as much as digits as its factorization.

4663536421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 40.

The square root of 4663536421 is about 68290.0902108058. The cubic root of 4663536421 is about 1670.7255886979.

The spelling of 4663536421 in words is "four billion, six hundred sixty-three million, five hundred thirty-six thousand, four hundred twenty-one".