64209639311 has 2 divisors, whose sum is σ = 64209639312. Its totient is φ = 64209639310.

The previous prime is 64209639287. The next prime is 64209639313. The reversal of 64209639311 is 11393690246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64209639311 - 2¹⁰ = 64209638287 is a prime.

Together with 64209639313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64209639313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32104819655 + 32104819656.

It is an arithmetic number, because the mean of its divisors is an integer number (32104819656).

Almost surely, 2^64209639311 is an apocalyptic number.

64209639311 is a deficient number, since it is larger than the sum of its proper divisors (1).

64209639311 is an equidigital number, since it uses as much as digits as its factorization.

64209639311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 44.

The spelling of 64209639311 in words is "sixty-four billion, two hundred nine million, six hundred thirty-nine thousand, three hundred eleven".