85885826321 has 2 divisors, whose sum is σ = 85885826322. Its totient is φ = 85885826320.

The previous prime is 85885826287. The next prime is 85885826339. The reversal of 85885826321 is 12362858858.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65863576321 + 20022250000 = 256639^2 + 141500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85885826321 is a prime.

It is not a weakly prime, because it can be changed into another prime (85885856321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42942913160 + 42942913161.

It is an arithmetic number, because the mean of its divisors is an integer number (42942913161).

Almost surely, 2^85885826321 is an apocalyptic number.

It is an amenable number.

85885826321 is a deficient number, since it is larger than the sum of its proper divisors (1).

85885826321 is an equidigital number, since it uses as much as digits as its factorization.

85885826321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7372800, while the sum is 56.

The spelling of 85885826321 in words is "eighty-five billion, eight hundred eighty-five million, eight hundred twenty-six thousand, three hundred twenty-one".