51534071671 has 2 divisors, whose sum is σ = 51534071672. Its totient is φ = 51534071670.

The previous prime is 51534071629. The next prime is 51534071681. The reversal of 51534071671 is 17617043515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51534071671 - 2⁹ = 51534071159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51534071681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25767035835 + 25767035836.

It is an arithmetic number, because the mean of its divisors is an integer number (25767035836).

Almost surely, 2^51534071671 is an apocalyptic number.

51534071671 is a deficient number, since it is larger than the sum of its proper divisors (1).

51534071671 is an equidigital number, since it uses as much as digits as its factorization.

51534071671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 51534071671 in words is "fifty-one billion, five hundred thirty-four million, seventy-one thousand, six hundred seventy-one".