527171380478641 has 2 divisors, whose sum is σ = 527171380478642. Its totient is φ = 527171380478640.

The previous prime is 527171380478609. The next prime is 527171380478653. The reversal of 527171380478641 is 146874083171725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 486497088509041 + 40674291969600 = 22056679^2 + 6377640^2 .

It is a cyclic number.

It is not a de Polignac number, because 527171380478641 - 2⁵ = 527171380478609 is a prime.

It is not a weakly prime, because it can be changed into another prime (527171380478741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263585690239320 + 263585690239321.

It is an arithmetic number, because the mean of its divisors is an integer number (263585690239321).

Almost surely, 2^{527171380478641} is an apocalyptic number.

It is an amenable number.

527171380478641 is a deficient number, since it is larger than the sum of its proper divisors (1).

527171380478641 is an equidigital number, since it uses as much as digits as its factorization.

527171380478641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63221760, while the sum is 64.

The spelling of 527171380478641 in words is "five hundred twenty-seven trillion, one hundred seventy-one billion, three hundred eighty million, four hundred seventy-eight thousand, six hundred forty-one".