850240615629440 has 384 divisors, whose sum is σ = 2496162769142400. Its totient is φ = 276168314032128.

The previous prime is 850240615629373. The next prime is 850240615629443. The reversal of 850240615629440 is 44926516042058.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (850240615629443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202293002 + ... + 206453238.

It is an arithmetic number, because the mean of its divisors is an integer number (6500423877975).

Almost surely, 2^{850240615629440} is an apocalyptic number.

850240615629440 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 850240615629440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248081384571200).

850240615629440 is an abundant number, since it is smaller than the sum of its proper divisors (1645922153512960).

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

850240615629440 is an frugal number, since it uses more digits than its factorization.

850240615629440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160310 (or 4160270 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 56.

The spelling of 850240615629440 in words is "eight hundred fifty trillion, two hundred forty billion, six hundred fifteen million, six hundred twenty-nine thousand, four hundred forty".