850811730777 has 12 divisors (see below), whose sum is σ = 1228970788864. Its totient is φ = 567198353880.

The previous prime is 850811730749. The next prime is 850811730787. The reversal of 850811730777 is 777037118058.

It is not a de Polignac number, because 850811730777 - 2¹⁹ = 850811206489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850811730787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196249 + ... + 1319142.

Almost surely, 2^850811730777 is an apocalyptic number.

It is an amenable number.

850811730777 is a deficient number, since it is larger than the sum of its proper divisors (378159058087).

850811730777 is a wasteful number, since it uses less digits than its factorization.

850811730777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577780 (or 1577777 counting only the distinct ones).

The product of its (nonzero) digits is 2304960, while the sum is 54.

The spelling of 850811730777 in words is "eight hundred fifty billion, eight hundred eleven million, seven hundred thirty thousand, seven hundred seventy-seven".