85807868263043 has 2 divisors, whose sum is σ = 85807868263044. Its totient is φ = 85807868263042.

The previous prime is 85807868263009. The next prime is 85807868263141. The reversal of 85807868263043 is 34036286870858.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85807868263043 is a prime.

It is a super-2 number, since 2×85807868263043² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85807868263643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42903934131521 + 42903934131522.

It is an arithmetic number, because the mean of its divisors is an integer number (42903934131522).

Almost surely, 2^{85807868263043} is an apocalyptic number.

85807868263043 is a deficient number, since it is larger than the sum of its proper divisors (1).

85807868263043 is an equidigital number, since it uses as much as digits as its factorization.

85807868263043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 371589120, while the sum is 68.

The spelling of 85807868263043 in words is "eighty-five trillion, eight hundred seven billion, eight hundred sixty-eight million, two hundred sixty-three thousand, forty-three".