85228941277 has 2 divisors, whose sum is σ = 85228941278. Its totient is φ = 85228941276.

The previous prime is 85228941271. The next prime is 85228941353. The reversal of 85228941277 is 77214982258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66705459076 + 18523482201 = 258274^2 + 136101^2 .

It is a cyclic number.

It is not a de Polignac number, because 85228941277 - 2¹⁵ = 85228908509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85228941271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42614470638 + 42614470639.

It is an arithmetic number, because the mean of its divisors is an integer number (42614470639).

Almost surely, 2^85228941277 is an apocalyptic number.

It is an amenable number.

85228941277 is a deficient number, since it is larger than the sum of its proper divisors (1).

85228941277 is an equidigital number, since it uses as much as digits as its factorization.

85228941277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4515840, while the sum is 55.

The spelling of 85228941277 in words is "eighty-five billion, two hundred twenty-eight million, nine hundred forty-one thousand, two hundred seventy-seven".