51322547687 has 2 divisors, whose sum is σ = 51322547688. Its totient is φ = 51322547686.

The previous prime is 51322547677. The next prime is 51322547719. The reversal of 51322547687 is 78674522315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51322547687 - 2¹⁰ = 51322546663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51322547677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25661273843 + 25661273844.

It is an arithmetic number, because the mean of its divisors is an integer number (25661273844).

Almost surely, 2^51322547687 is an apocalyptic number.

51322547687 is a deficient number, since it is larger than the sum of its proper divisors (1).

51322547687 is an equidigital number, since it uses as much as digits as its factorization.

51322547687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2822400, while the sum is 50.

The spelling of 51322547687 in words is "fifty-one billion, three hundred twenty-two million, five hundred forty-seven thousand, six hundred eighty-seven".