850946775408 has 120 divisors (see below), whose sum is σ = 2432175089760. Its totient is φ = 277634972160.

The previous prime is 850946775397. The next prime is 850946775409. The reversal of 850946775408 is 804577649058.

850946775408 is a `hidden beast` number, since 8 + 509 + 4 + 6 + 77 + 54 + 0 + 8 = 666.

It is a super-2 number, since 2×850946775408² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850946775409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3080653 + ... + 3345491.

It is an arithmetic number, because the mean of its divisors is an integer number (20268125748).

Almost surely, 2^850946775408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850946775408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216087544880).

850946775408 is an abundant number, since it is smaller than the sum of its proper divisors (1581228314352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

850946775408 is a wasteful number, since it uses less digits than its factorization.

850946775408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265327 (or 265318 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 63.

The spelling of 850946775408 in words is "eight hundred fifty billion, nine hundred forty-six million, seven hundred seventy-five thousand, four hundred eight".