85010767691 has 2 divisors, whose sum is σ = 85010767692. Its totient is φ = 85010767690.

The previous prime is 85010767679. The next prime is 85010767739. The reversal of 85010767691 is 19676701058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85010767691 - 2⁶ = 85010767627 is a prime.

It is not a weakly prime, because it can be changed into another prime (85010767631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42505383845 + 42505383846.

It is an arithmetic number, because the mean of its divisors is an integer number (42505383846).

Almost surely, 2^85010767691 is an apocalyptic number.

85010767691 is a deficient number, since it is larger than the sum of its proper divisors (1).

85010767691 is an equidigital number, since it uses as much as digits as its factorization.

85010767691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 50.

The spelling of 85010767691 in words is "eighty-five billion, ten million, seven hundred sixty-seven thousand, six hundred ninety-one".