86254854661 has 2 divisors, whose sum is σ = 86254854662. Its totient is φ = 86254854660.

The previous prime is 86254854641. The next prime is 86254854683. The reversal of 86254854661 is 16645845268.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54210274561 + 32044580100 = 232831^2 + 179010^2 .

It is a cyclic number.

It is not a de Polignac number, because 86254854661 - 2¹⁷ = 86254723589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86254854641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43127427330 + 43127427331.

It is an arithmetic number, because the mean of its divisors is an integer number (43127427331).

Almost surely, 2^86254854661 is an apocalyptic number.

It is an amenable number.

86254854661 is a deficient number, since it is larger than the sum of its proper divisors (1).

86254854661 is an equidigital number, since it uses as much as digits as its factorization.

86254854661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11059200, while the sum is 55.

The spelling of 86254854661 in words is "eighty-six billion, two hundred fifty-four million, eight hundred fifty-four thousand, six hundred sixty-one".