850551784461 has 16 divisors (see below), whose sum is σ = 1263401473600. Its totient is φ = 565538382864.

The previous prime is 850551784417. The next prime is 850551784501. The reversal of 850551784461 is 164487155058.

850551784461 is a `hidden beast` number, since 8 + 5 + 0 + 5 + 5 + 178 + 4 + 461 = 666.

It is not a de Polignac number, because 850551784461 - 2¹⁰ = 850551783437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 850551784398 and 850551784407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850551784661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41549026 + ... + 41569491.

It is an arithmetic number, because the mean of its divisors is an integer number (78962592100).

Almost surely, 2^850551784461 is an apocalyptic number.

It is an amenable number.

850551784461 is a deficient number, since it is larger than the sum of its proper divisors (412849689139).

850551784461 is a wasteful number, since it uses less digits than its factorization.

850551784461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83118905 (or 83118899 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 54.

The spelling of 850551784461 in words is "eight hundred fifty billion, five hundred fifty-one million, seven hundred eighty-four thousand, four hundred sixty-one".