85295810641 has 2 divisors, whose sum is σ = 85295810642. Its totient is φ = 85295810640.

The previous prime is 85295810573. The next prime is 85295810669. The reversal of 85295810641 is 14601859258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71554110016 + 13741700625 = 267496^2 + 117225^2 .

It is a cyclic number.

It is not a de Polignac number, because 85295810641 - 2³¹ = 83148326993 is a prime.

It is not a weakly prime, because it can be changed into another prime (85295810671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42647905320 + 42647905321.

It is an arithmetic number, because the mean of its divisors is an integer number (42647905321).

Almost surely, 2^85295810641 is an apocalyptic number.

It is an amenable number.

85295810641 is a deficient number, since it is larger than the sum of its proper divisors (1).

85295810641 is an equidigital number, since it uses as much as digits as its factorization.

85295810641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 85295810641 in words is "eighty-five billion, two hundred ninety-five million, eight hundred ten thousand, six hundred forty-one".