86143243429 has 2 divisors, whose sum is σ = 86143243430. Its totient is φ = 86143243428.

The previous prime is 86143243409. The next prime is 86143243447. The reversal of 86143243429 is 92434234168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56005589025 + 30137654404 = 236655^2 + 173602^2 .

It is a cyclic number.

It is not a de Polignac number, because 86143243429 - 2¹³ = 86143235237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86143243409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43071621714 + 43071621715.

It is an arithmetic number, because the mean of its divisors is an integer number (43071621715).

Almost surely, 2^86143243429 is an apocalyptic number.

It is an amenable number.

86143243429 is a deficient number, since it is larger than the sum of its proper divisors (1).

86143243429 is an equidigital number, since it uses as much as digits as its factorization.

86143243429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 46.

The spelling of 86143243429 in words is "eighty-six billion, one hundred forty-three million, two hundred forty-three thousand, four hundred twenty-nine".