51672682069 has 2 divisors, whose sum is σ = 51672682070. Its totient is φ = 51672682068.

The previous prime is 51672682043. The next prime is 51672682091. The reversal of 51672682069 is 96028627615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51669836100 + 2845969 = 227310^2 + 1687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51672682069 is a prime.

It is a super-2 number, since 2×51672682069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51672682669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25836341034 + 25836341035.

It is an arithmetic number, because the mean of its divisors is an integer number (25836341035).

Almost surely, 2^51672682069 is an apocalyptic number.

It is an amenable number.

51672682069 is a deficient number, since it is larger than the sum of its proper divisors (1).

51672682069 is an equidigital number, since it uses as much as digits as its factorization.

51672682069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 51672682069 in words is "fifty-one billion, six hundred seventy-two million, six hundred eighty-two thousand, sixty-nine".