531323207677 has 2 divisors, whose sum is σ = 531323207678. Its totient is φ = 531323207676.

The previous prime is 531323207633. The next prime is 531323207687. The reversal of 531323207677 is 776702323135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524648154276 + 6675053401 = 724326^2 + 81701^2 .

It is a cyclic number.

It is not a de Polignac number, because 531323207677 - 2¹⁵ = 531323174909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531323207687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265661603838 + 265661603839.

It is an arithmetic number, because the mean of its divisors is an integer number (265661603839).

Almost surely, 2^531323207677 is an apocalyptic number.

It is an amenable number.

531323207677 is a deficient number, since it is larger than the sum of its proper divisors (1).

531323207677 is an equidigital number, since it uses as much as digits as its factorization.

531323207677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1111320, while the sum is 46.

The spelling of 531323207677 in words is "five hundred thirty-one billion, three hundred twenty-three million, two hundred seven thousand, six hundred seventy-seven".