531633211351493 has 2 divisors, whose sum is σ = 531633211351494. Its totient is φ = 531633211351492.

The previous prime is 531633211351441. The next prime is 531633211351549. The reversal of 531633211351493 is 394153112336135.

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., 436312805162404 + 95320406189089 = 20888102^2 + 9763217^2 .

It is a cyclic number.

It is not a de Polignac number, because 531633211351493 - 2⁸ = 531633211351237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531633211351093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265816605675746 + 265816605675747.

It is an arithmetic number, because the mean of its divisors is an integer number (265816605675747).

Almost surely, 2^{531633211351493} is an apocalyptic number.

It is an amenable number.

531633211351493 is a deficient number, since it is larger than the sum of its proper divisors (1).

531633211351493 is an equidigital number, since it uses as much as digits as its factorization.

531633211351493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 50.

The spelling of 531633211351493 in words is "five hundred thirty-one trillion, six hundred thirty-three billion, two hundred eleven million, three hundred fifty-one thousand, four hundred ninety-three".