51086518480211 has 2 divisors, whose sum is σ = 51086518480212. Its totient is φ = 51086518480210.

The previous prime is 51086518480181. The next prime is 51086518480253. The reversal of 51086518480211 is 11208481568015.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51086518480211 - 2¹⁸ = 51086518218067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51086518480211.

It is not a weakly prime, because it can be changed into another prime (51086518489211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25543259240105 + 25543259240106.

It is an arithmetic number, because the mean of its divisors is an integer number (25543259240106).

Almost surely, 2^{51086518480211} is an apocalyptic number.

51086518480211 is a deficient number, since it is larger than the sum of its proper divisors (1).

51086518480211 is an equidigital number, since it uses as much as digits as its factorization.

51086518480211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 614400, while the sum is 50.

The spelling of 51086518480211 in words is "fifty-one trillion, eighty-six billion, five hundred eighteen million, four hundred eighty thousand, two hundred eleven".