850512920320 has 144 divisors (see below), whose sum is σ = 2382426224640. Its totient is φ = 284822802432.

The previous prime is 850512920317. The next prime is 850512920321. The reversal of 850512920320 is 23029215058.

It is a self number, because there is not a number n which added to its sum of digits gives 850512920320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850512920321) 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, 718480 + ... + 1489039.

It is an arithmetic number, because the mean of its divisors is an integer number (16544626560).

Almost surely, 2^850512920320 is an apocalyptic number.

850512920320 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

850512920320 is an abundant number, since it is smaller than the sum of its proper divisors (1531913304320).

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

850512920320 is a wasteful number, since it uses less digits than its factorization.

850512920320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2207590 (or 2207576 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 850512920320 in words is "eight hundred fifty billion, five hundred twelve million, nine hundred twenty thousand, three hundred twenty".