86255864053729 has 2 divisors, whose sum is σ = 86255864053730. Its totient is φ = 86255864053728.

The previous prime is 86255864053693. The next prime is 86255864053741. The reversal of 86255864053729 is 92735046855268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46135991353104 + 40119872700625 = 6792348^2 + 6334025^2 .

It is a cyclic number.

It is not a de Polignac number, because 86255864053729 - 2¹⁵ = 86255864020961 is a prime.

It is not a weakly prime, because it can be changed into another prime (86255864053759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43127932026864 + 43127932026865.

It is an arithmetic number, because the mean of its divisors is an integer number (43127932026865).

Almost surely, 2^{86255864053729} is an apocalyptic number.

It is an amenable number.

86255864053729 is a deficient number, since it is larger than the sum of its proper divisors (1).

86255864053729 is an equidigital number, since it uses as much as digits as its factorization.

86255864053729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912000, while the sum is 70.

The spelling of 86255864053729 in words is "eighty-six trillion, two hundred fifty-five billion, eight hundred sixty-four million, fifty-three thousand, seven hundred twenty-nine".