4536277021 has 2 divisors, whose sum is σ = 4536277022. Its totient is φ = 4536277020.

The previous prime is 4536276949. The next prime is 4536277033. The reversal of 4536277021 is 1207726354.

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., 4509122500 + 27154521 = 67150^2 + 5211^2 .

It is a cyclic number.

It is not a de Polignac number, because 4536277021 - 2⁷ = 4536276893 is a prime.

It is a super-2 number, since 2×4536277021² = 41155618422505268882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4536271021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2268138510 + 2268138511.

It is an arithmetic number, because the mean of its divisors is an integer number (2268138511).

Almost surely, 2^4536277021 is an apocalyptic number.

It is an amenable number.

4536277021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4536277021 is an equidigital number, since it uses as much as digits as its factorization.

4536277021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 4536277021 is about 67351.8895132126. The cubic root of 4536277021 is about 1655.3882035525.

The spelling of 4536277021 in words is "four billion, five hundred thirty-six million, two hundred seventy-seven thousand, twenty-one".