2064421633609 has 2 divisors, whose sum is σ = 2064421633610. Its totient is φ = 2064421633608.

The previous prime is 2064421633597. The next prime is 2064421633717. The reversal of 2064421633609 is 9063361244602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2062750867984 + 1670765625 = 1436228^2 + 40875^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064421633609 - 2¹⁵ = 2064421600841 is a prime.

It is not a weakly prime, because it can be changed into another prime (2064421631609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032210816804 + 1032210816805.

It is an arithmetic number, because the mean of its divisors is an integer number (1032210816805).

Almost surely, 2^{2064421633609} is an apocalyptic number.

It is an amenable number.

2064421633609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064421633609 is an equidigital number, since it uses as much as digits as its factorization.

2064421633609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 46.

The spelling of 2064421633609 in words is "two trillion, sixty-four billion, four hundred twenty-one million, six hundred thirty-three thousand, six hundred nine".