86738918543 has 2 divisors, whose sum is σ = 86738918544. Its totient is φ = 86738918542.

The previous prime is 86738918531. The next prime is 86738918611. The reversal of 86738918543 is 34581983768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86738918543 - 2³⁶ = 18019441807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86738918443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43369459271 + 43369459272.

It is an arithmetic number, because the mean of its divisors is an integer number (43369459272).

Almost surely, 2^86738918543 is an apocalyptic number.

86738918543 is a deficient number, since it is larger than the sum of its proper divisors (1).

86738918543 is an equidigital number, since it uses as much as digits as its factorization.

86738918543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34836480, while the sum is 62.

The spelling of 86738918543 in words is "eighty-six billion, seven hundred thirty-eight million, nine hundred eighteen thousand, five hundred forty-three".