51695957167 has 2 divisors, whose sum is σ = 51695957168. Its totient is φ = 51695957166.

The previous prime is 51695957143. The next prime is 51695957171. The reversal of 51695957167 is 76175959615.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51695957167 - 2⁷ = 51695957039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51695957267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25847978583 + 25847978584.

It is an arithmetic number, because the mean of its divisors is an integer number (25847978584).

Almost surely, 2^51695957167 is an apocalyptic number.

51695957167 is a deficient number, since it is larger than the sum of its proper divisors (1).

51695957167 is an equidigital number, since it uses as much as digits as its factorization.

51695957167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17860500, while the sum is 61.

The spelling of 51695957167 in words is "fifty-one billion, six hundred ninety-five million, nine hundred fifty-seven thousand, one hundred sixty-seven".