31264068439 has 2 divisors, whose sum is σ = 31264068440. Its totient is φ = 31264068438.

The previous prime is 31264068427. The next prime is 31264068443. The reversal of 31264068439 is 93486046213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31264068439 - 2³³ = 22674133847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31264068139) 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, 15632034219 + 15632034220.

It is an arithmetic number, because the mean of its divisors is an integer number (15632034220).

Almost surely, 2^31264068439 is an apocalyptic number.

31264068439 is a deficient number, since it is larger than the sum of its proper divisors (1).

31264068439 is an equidigital number, since it uses as much as digits as its factorization.

31264068439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 31264068439 in words is "thirty-one billion, two hundred sixty-four million, sixty-eight thousand, four hundred thirty-nine".