51827695859 has 2 divisors, whose sum is σ = 51827695860. Its totient is φ = 51827695858.

The previous prime is 51827695853. The next prime is 51827695877. The reversal of 51827695859 is 95859672815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51827695859 - 2⁸ = 51827695603 is a prime.

It is a super-2 number, since 2×51827695859² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51827695795 and 51827695804.

It is not a weakly prime, because it can be changed into another prime (51827695853) 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, 25913847929 + 25913847930.

It is an arithmetic number, because the mean of its divisors is an integer number (25913847930).

Almost surely, 2^51827695859 is an apocalyptic number.

51827695859 is a deficient number, since it is larger than the sum of its proper divisors (1).

51827695859 is an equidigital number, since it uses as much as digits as its factorization.

51827695859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432000, while the sum is 65.

The spelling of 51827695859 in words is "fifty-one billion, eight hundred twenty-seven million, six hundred ninety-five thousand, eight hundred fifty-nine".