3268771021 has 2 divisors, whose sum is σ = 3268771022. Its totient is φ = 3268771020.

The previous prime is 3268771019. The next prime is 3268771027. The reversal of 3268771021 is 1201778623.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2207966121 + 1060804900 = 46989^2 + 32570^2 .

It is a cyclic number.

It is not a de Polignac number, because 3268771021 - 2¹ = 3268771019 is a prime.

Together with 3268771019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3268771027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1634385510 + 1634385511.

It is an arithmetic number, because the mean of its divisors is an integer number (1634385511).

Almost surely, 2^3268771021 is an apocalyptic number.

It is an amenable number.

3268771021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3268771021 is an equidigital number, since it uses as much as digits as its factorization.

3268771021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 3268771021 is about 57173.1669666811. The cubic root of 3268771021 is about 1484.0943089575.

The spelling of 3268771021 in words is "three billion, two hundred sixty-eight million, seven hundred seventy-one thousand, twenty-one".