64322787013 has 2 divisors, whose sum is σ = 64322787014. Its totient is φ = 64322787012.

The previous prime is 64322786989. The next prime is 64322787019. The reversal of 64322787013 is 31078722346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64289123809 + 33663204 = 253553^2 + 5802^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64322787013 is a prime.

It is a super-2 number, since 2×64322787013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64322787019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32161393506 + 32161393507.

It is an arithmetic number, because the mean of its divisors is an integer number (32161393507).

Almost surely, 2^64322787013 is an apocalyptic number.

It is an amenable number.

64322787013 is a deficient number, since it is larger than the sum of its proper divisors (1).

64322787013 is an equidigital number, since it uses as much as digits as its factorization.

64322787013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 64322787013 in words is "sixty-four billion, three hundred twenty-two million, seven hundred eighty-seven thousand, thirteen".