851334358841 has 2 divisors, whose sum is σ = 851334358842. Its totient is φ = 851334358840.

The previous prime is 851334358817. The next prime is 851334358871. The reversal of 851334358841 is 148853433158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447828640000 + 403505718841 = 669200^2 + 635221^2 .

It is a cyclic number.

It is not a de Polignac number, because 851334358841 - 2¹⁴ = 851334342457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (851334358871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425667179420 + 425667179421.

It is an arithmetic number, because the mean of its divisors is an integer number (425667179421).

Almost surely, 2^851334358841 is an apocalyptic number.

It is an amenable number.

851334358841 is a deficient number, since it is larger than the sum of its proper divisors (1).

851334358841 is an equidigital number, since it uses as much as digits as its factorization.

851334358841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 53.

The spelling of 851334358841 in words is "eight hundred fifty-one billion, three hundred thirty-four million, three hundred fifty-eight thousand, eight hundred forty-one".