86444820211 has 2 divisors, whose sum is σ = 86444820212. Its totient is φ = 86444820210.

The previous prime is 86444820173. The next prime is 86444820229. The reversal of 86444820211 is 11202844468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86444820211 - 2⁷ = 86444820083 is a prime.

It is a super-2 number, since 2×86444820211² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86444820311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43222410105 + 43222410106.

It is an arithmetic number, because the mean of its divisors is an integer number (43222410106).

Almost surely, 2^86444820211 is an apocalyptic number.

86444820211 is a deficient number, since it is larger than the sum of its proper divisors (1).

86444820211 is an equidigital number, since it uses as much as digits as its factorization.

86444820211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 86444820211 in words is "eighty-six billion, four hundred forty-four million, eight hundred twenty thousand, two hundred eleven".