64343063231 has 2 divisors, whose sum is σ = 64343063232. Its totient is φ = 64343063230.

The previous prime is 64343063221. The next prime is 64343063249. The reversal of 64343063231 is 13236034346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64343063231 - 2³⁰ = 63269321407 is a prime.

It is a super-2 number, since 2×64343063231² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 64343063191 and 64343063200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64343063221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32171531615 + 32171531616.

It is an arithmetic number, because the mean of its divisors is an integer number (32171531616).

Almost surely, 2^64343063231 is an apocalyptic number.

64343063231 is a deficient number, since it is larger than the sum of its proper divisors (1).

64343063231 is an equidigital number, since it uses as much as digits as its factorization.

64343063231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 64343063231 its reverse (13236034346), we get a palindrome (77579097577).

The spelling of 64343063231 in words is "sixty-four billion, three hundred forty-three million, sixty-three thousand, two hundred thirty-one".