85644341707 has 2 divisors, whose sum is σ = 85644341708. Its totient is φ = 85644341706.

The previous prime is 85644341687. The next prime is 85644341747. The reversal of 85644341707 is 70714344658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85644341707 - 2³¹ = 83496858059 is a prime.

It is not a weakly prime, because it can be changed into another prime (85644341747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42822170853 + 42822170854.

It is an arithmetic number, because the mean of its divisors is an integer number (42822170854).

Almost surely, 2^85644341707 is an apocalyptic number.

85644341707 is a deficient number, since it is larger than the sum of its proper divisors (1).

85644341707 is an equidigital number, since it uses as much as digits as its factorization.

85644341707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 85644341707 in words is "eighty-five billion, six hundred forty-four million, three hundred forty-one thousand, seven hundred seven".