85807410509767 has 2 divisors, whose sum is σ = 85807410509768. Its totient is φ = 85807410509766.

The previous prime is 85807410509759. The next prime is 85807410509771. The reversal of 85807410509767 is 76790501470858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85807410509767 - 2³ = 85807410509759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85807410500767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42903705254883 + 42903705254884.

It is an arithmetic number, because the mean of its divisors is an integer number (42903705254884).

Almost surely, 2^{85807410509767} is an apocalyptic number.

85807410509767 is a deficient number, since it is larger than the sum of its proper divisors (1).

85807410509767 is an equidigital number, since it uses as much as digits as its factorization.

85807410509767 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118540800, while the sum is 67.

The spelling of 85807410509767 in words is "eighty-five trillion, eight hundred seven billion, four hundred ten million, five hundred nine thousand, seven hundred sixty-seven".