64593809323 has 2 divisors, whose sum is σ = 64593809324. Its totient is φ = 64593809322.

The previous prime is 64593809311. The next prime is 64593809377. The reversal of 64593809323 is 32390839546.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64593809323 is a prime.

It is not a weakly prime, because it can be changed into another prime (64593809383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32296904661 + 32296904662.

It is an arithmetic number, because the mean of its divisors is an integer number (32296904662).

Almost surely, 2^64593809323 is an apocalyptic number.

64593809323 is a deficient number, since it is larger than the sum of its proper divisors (1).

64593809323 is an equidigital number, since it uses as much as digits as its factorization.

64593809323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 52.

The spelling of 64593809323 in words is "sixty-four billion, five hundred ninety-three million, eight hundred nine thousand, three hundred twenty-three".