320006268493 has 2 divisors, whose sum is σ = 320006268494. Its totient is φ = 320006268492.

The previous prime is 320006268487. The next prime is 320006268557. The reversal of 320006268493 is 394862600023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319997256489 + 9012004 = 565683^2 + 3002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320006268493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320006268403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160003134246 + 160003134247.

It is an arithmetic number, because the mean of its divisors is an integer number (160003134247).

Almost surely, 2^320006268493 is an apocalyptic number.

It is an amenable number.

320006268493 is a deficient number, since it is larger than the sum of its proper divisors (1).

320006268493 is an equidigital number, since it uses as much as digits as its factorization.

320006268493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 320006268493 in words is "three hundred twenty billion, six million, two hundred sixty-eight thousand, four hundred ninety-three".