86219543393 has 2 divisors, whose sum is σ = 86219543394. Its totient is φ = 86219543392.

The previous prime is 86219543339. The next prime is 86219543477. The reversal of 86219543393 is 39334591268.

Together with previous prime (86219543339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65527296289 + 20692247104 = 255983^2 + 143848^2 .

It is a cyclic number.

It is not a de Polignac number, because 86219543393 - 2¹⁶ = 86219477857 is a prime.

It is not a weakly prime, because it can be changed into another prime (86219542393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43109771696 + 43109771697.

It is an arithmetic number, because the mean of its divisors is an integer number (43109771697).

Almost surely, 2^86219543393 is an apocalyptic number.

It is an amenable number.

86219543393 is a deficient number, since it is larger than the sum of its proper divisors (1).

86219543393 is an equidigital number, since it uses as much as digits as its factorization.

86219543393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 53.

The spelling of 86219543393 in words is "eighty-six billion, two hundred nineteen million, five hundred forty-three thousand, three hundred ninety-three".