531948775277 has 2 divisors, whose sum is σ = 531948775278. Its totient is φ = 531948775276.

The previous prime is 531948775223. The next prime is 531948775301. The reversal of 531948775277 is 772577849135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 382559568196 + 149389207081 = 618514^2 + 386509^2 .

It is a cyclic number.

It is not a de Polignac number, because 531948775277 - 2⁶ = 531948775213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531978775277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265974387638 + 265974387639.

It is an arithmetic number, because the mean of its divisors is an integer number (265974387639).

Almost surely, 2^531948775277 is an apocalyptic number.

It is an amenable number.

531948775277 is a deficient number, since it is larger than the sum of its proper divisors (1).

531948775277 is an equidigital number, since it uses as much as digits as its factorization.

531948775277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103723200, while the sum is 65.

The spelling of 531948775277 in words is "five hundred thirty-one billion, nine hundred forty-eight million, seven hundred seventy-five thousand, two hundred seventy-seven".