850857571708368 has 80 divisors (see below), whose sum is σ = 2512059993870336. Its totient is φ = 243101746638720.

The previous prime is 850857571708337. The next prime is 850857571708433. The reversal of 850857571708368 is 863807175758058.

It is a Cunningham number, because it is equal to 29169463²-1.

It is a junction number, because it is equal to n+sod(n) for n = 850857571708293 and 850857571708302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231532605 + ... + 235178787.

Almost surely, 2^{850857571708368} is an apocalyptic number.

It is an amenable number.

850857571708368 is an abundant number, since it is smaller than the sum of its proper divisors (1661202422161968).

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

850857571708368 is a wasteful number, since it uses less digits than its factorization.

850857571708368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340712 (or 4340706 counting only the distinct ones).

The product of its (nonzero) digits is 3161088000, while the sum is 78.

The spelling of 850857571708368 in words is "eight hundred fifty trillion, eight hundred fifty-seven billion, five hundred seventy-one million, seven hundred eight thousand, three hundred sixty-eight".