51641068211 has 2 divisors, whose sum is σ = 51641068212. Its totient is φ = 51641068210.

The previous prime is 51641068207. The next prime is 51641068243. The reversal of 51641068211 is 11286014615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51641068211 - 2² = 51641068207 is a prime.

It is not a weakly prime, because it can be changed into another prime (51641068511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25820534105 + 25820534106.

It is an arithmetic number, because the mean of its divisors is an integer number (25820534106).

Almost surely, 2^51641068211 is an apocalyptic number.

51641068211 is a deficient number, since it is larger than the sum of its proper divisors (1).

51641068211 is an equidigital number, since it uses as much as digits as its factorization.

51641068211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 51641068211 in words is "fifty-one billion, six hundred forty-one million, sixty-eight thousand, two hundred eleven".