86539904281 has 2 divisors, whose sum is σ = 86539904282. Its totient is φ = 86539904280.

The previous prime is 86539904249. The next prime is 86539904303. The reversal of 86539904281 is 18240993568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86518927881 + 20976400 = 294141^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 86539904281 - 2⁵ = 86539904249 is a prime.

It is a super-2 number, since 2×86539904281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86539904201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43269952140 + 43269952141.

It is an arithmetic number, because the mean of its divisors is an integer number (43269952141).

Almost surely, 2^86539904281 is an apocalyptic number.

It is an amenable number.

86539904281 is a deficient number, since it is larger than the sum of its proper divisors (1).

86539904281 is an equidigital number, since it uses as much as digits as its factorization.

86539904281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 86539904281 in words is "eighty-six billion, five hundred thirty-nine million, nine hundred four thousand, two hundred eighty-one".