850817130240 has 1152 divisors, whose sum is σ = 3585718886400. Its totient is φ = 166569246720.

The previous prime is 850817130239. The next prime is 850817130263. The reversal of 850817130240 is 42031718058.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1511220199 + ... + 1511220761.

It is an arithmetic number, because the mean of its divisors is an integer number (3112603200).

Almost surely, 2^850817130240 is an apocalyptic number.

850817130240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 850817130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1792859443200).

850817130240 is an abundant number, since it is smaller than the sum of its proper divisors (2734901756160).

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

850817130240 is a wasteful number, since it uses less digits than its factorization.

850817130240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

Adding to 850817130240 its reverse (42031718058), we get a palindrome (892848848298).

The spelling of 850817130240 in words is "eight hundred fifty billion, eight hundred seventeen million, one hundred thirty thousand, two hundred forty".