427320319339 has 2 divisors, whose sum is σ = 427320319340. Its totient is φ = 427320319338.

The previous prime is 427320319319. The next prime is 427320319373. The reversal of 427320319339 is 933913023724.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427320319339 is a prime.

It is not a weakly prime, because it can be changed into another prime (427320319319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213660159669 + 213660159670.

It is an arithmetic number, because the mean of its divisors is an integer number (213660159670).

Almost surely, 2^427320319339 is an apocalyptic number.

427320319339 is a deficient number, since it is larger than the sum of its proper divisors (1).

427320319339 is an equidigital number, since it uses as much as digits as its factorization.

427320319339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 46.

The spelling of 427320319339 in words is "four hundred twenty-seven billion, three hundred twenty million, three hundred nineteen thousand, three hundred thirty-nine".