850066239768 has 128 divisors (see below), whose sum is σ = 2185155921600. Its totient is φ = 275462660096.

The previous prime is 850066239749. The next prime is 850066239791. The reversal of 850066239768 is 867932660058.

It is a happy number.

It is a super-2 number, since 2×850066239768² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99151930 + ... + 99160502.

Almost surely, 2^850066239768 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 850066239768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092577960800).

850066239768 is an abundant number, since it is smaller than the sum of its proper divisors (1335089681832).

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

850066239768 is a wasteful number, since it uses less digits than its factorization.

850066239768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341 (or 9337 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 60.

The spelling of 850066239768 in words is "eight hundred fifty billion, sixty-six million, two hundred thirty-nine thousand, seven hundred sixty-eight".