85867708164419 has 2 divisors, whose sum is σ = 85867708164420. Its totient is φ = 85867708164418.

The previous prime is 85867708164379. The next prime is 85867708164479. The reversal of 85867708164419 is 91446180776858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85867708164419 - 2¹⁶ = 85867708098883 is a prime.

It is a super-2 number, since 2×85867708164419² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85867708164479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42933854082209 + 42933854082210.

It is an arithmetic number, because the mean of its divisors is an integer number (42933854082210).

Almost surely, 2^{85867708164419} is an apocalyptic number.

85867708164419 is a deficient number, since it is larger than the sum of its proper divisors (1).

85867708164419 is an equidigital number, since it uses as much as digits as its factorization.

85867708164419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 650280960, while the sum is 74.

The spelling of 85867708164419 in words is "eighty-five trillion, eight hundred sixty-seven billion, seven hundred eight million, one hundred sixty-four thousand, four hundred nineteen".