85806502307 has 2 divisors, whose sum is σ = 85806502308. Its totient is φ = 85806502306.

The previous prime is 85806502291. The next prime is 85806502387. The reversal of 85806502307 is 70320560858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85806502307 - 2⁴ = 85806502291 is a prime.

It is a super-2 number, since 2×85806502307² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85806502387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42903251153 + 42903251154.

It is an arithmetic number, because the mean of its divisors is an integer number (42903251154).

Almost surely, 2^85806502307 is an apocalyptic number.

85806502307 is a deficient number, since it is larger than the sum of its proper divisors (1).

85806502307 is an equidigital number, since it uses as much as digits as its factorization.

85806502307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 85806502307 in words is "eighty-five billion, eight hundred six million, five hundred two thousand, three hundred seven".