31346264393 has 2 divisors, whose sum is σ = 31346264394. Its totient is φ = 31346264392.

The previous prime is 31346264381. The next prime is 31346264413. The reversal of 31346264393 is 39346264313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26494723984 + 4851540409 = 162772^2 + 69653^2 .

It is a cyclic number.

It is not a de Polignac number, because 31346264393 - 2²⁸ = 31077828937 is a prime.

It is not a weakly prime, because it can be changed into another prime (31346264093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15673132196 + 15673132197.

It is an arithmetic number, because the mean of its divisors is an integer number (15673132197).

Almost surely, 2^31346264393 is an apocalyptic number.

It is an amenable number.

31346264393 is a deficient number, since it is larger than the sum of its proper divisors (1).

31346264393 is an equidigital number, since it uses as much as digits as its factorization.

31346264393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 44.

The spelling of 31346264393 in words is "thirty-one billion, three hundred forty-six million, two hundred sixty-four thousand, three hundred ninety-three".