64064322439109 has 2 divisors, whose sum is σ = 64064322439110. Its totient is φ = 64064322439108.

The previous prime is 64064322438953. The next prime is 64064322439127. The reversal of 64064322439109 is 90193422346046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62510054068900 + 1554268370209 = 7906330^2 + 1246703^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64064322439109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64064322430109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32032161219554 + 32032161219555.

It is an arithmetic number, because the mean of its divisors is an integer number (32032161219555).

Almost surely, 2^{64064322439109} is an apocalyptic number.

It is an amenable number.

64064322439109 is a deficient number, since it is larger than the sum of its proper divisors (1).

64064322439109 is an equidigital number, since it uses as much as digits as its factorization.

64064322439109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 64064322439109 in words is "sixty-four trillion, sixty-four billion, three hundred twenty-two million, four hundred thirty-nine thousand, one hundred nine".