85266586062709 has 2 divisors, whose sum is σ = 85266586062710. Its totient is φ = 85266586062708.

The previous prime is 85266586062673. The next prime is 85266586062731. The reversal of 85266586062709 is 90726068566258.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58965843082084 + 26300742980625 = 7678922^2 + 5128425^2 .

It is a cyclic number.

It is not a de Polignac number, because 85266586062709 - 2²¹ = 85266583965557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85266586062109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42633293031354 + 42633293031355.

It is an arithmetic number, because the mean of its divisors is an integer number (42633293031355).

Almost surely, 2^{85266586062709} is an apocalyptic number.

It is an amenable number.

85266586062709 is a deficient number, since it is larger than the sum of its proper divisors (1).

85266586062709 is an equidigital number, since it uses as much as digits as its factorization.

85266586062709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 522547200, while the sum is 70.

The spelling of 85266586062709 in words is "eighty-five trillion, two hundred sixty-six billion, five hundred eighty-six million, sixty-two thousand, seven hundred nine".