51863213170211 has 2 divisors, whose sum is σ = 51863213170212. Its totient is φ = 51863213170210.

The previous prime is 51863213170207. The next prime is 51863213170297. The reversal of 51863213170211 is 11207131236815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51863213170211 - 2² = 51863213170207 is a prime.

It is not a weakly prime, because it can be changed into another prime (51863213170511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25931606585105 + 25931606585106.

It is an arithmetic number, because the mean of its divisors is an integer number (25931606585106).

Almost surely, 2^{51863213170211} is an apocalyptic number.

51863213170211 is a deficient number, since it is larger than the sum of its proper divisors (1).

51863213170211 is an equidigital number, since it uses as much as digits as its factorization.

51863213170211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 51863213170211 in words is "fifty-one trillion, eight hundred sixty-three billion, two hundred thirteen million, one hundred seventy thousand, two hundred eleven".