51319129573 has 2 divisors, whose sum is σ = 51319129574. Its totient is φ = 51319129572.

The previous prime is 51319129571. The next prime is 51319129579. The reversal of 51319129573 is 37592191315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51147440964 + 171688609 = 226158^2 + 13103^2 .

It is a cyclic number.

It is not a de Polignac number, because 51319129573 - 2¹ = 51319129571 is a prime.

Together with 51319129571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51319129571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25659564786 + 25659564787.

It is an arithmetic number, because the mean of its divisors is an integer number (25659564787).

Almost surely, 2^51319129573 is an apocalyptic number.

It is an amenable number.

51319129573 is a deficient number, since it is larger than the sum of its proper divisors (1).

51319129573 is an equidigital number, since it uses as much as digits as its factorization.

51319129573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 255150, while the sum is 46.

The spelling of 51319129573 in words is "fifty-one billion, three hundred nineteen million, one hundred twenty-nine thousand, five hundred seventy-three".