85944265441 has 2 divisors, whose sum is σ = 85944265442. Its totient is φ = 85944265440.

The previous prime is 85944265427. The next prime is 85944265483. The reversal of 85944265441 is 14456244958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83003914816 + 2940350625 = 288104^2 + 54225^2 .

It is a cyclic number.

It is not a de Polignac number, because 85944265441 - 2⁵ = 85944265409 is a prime.

It is not a weakly prime, because it can be changed into another prime (85444265441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42972132720 + 42972132721.

It is an arithmetic number, because the mean of its divisors is an integer number (42972132721).

Almost surely, 2^85944265441 is an apocalyptic number.

It is an amenable number.

85944265441 is a deficient number, since it is larger than the sum of its proper divisors (1).

85944265441 is an equidigital number, since it uses as much as digits as its factorization.

85944265441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5529600, while the sum is 52.

The spelling of 85944265441 in words is "eighty-five billion, nine hundred forty-four million, two hundred sixty-five thousand, four hundred forty-one".