850865909475371 has 2 divisors, whose sum is σ = 850865909475372. Its totient is φ = 850865909475370.

The previous prime is 850865909475367. The next prime is 850865909475443. The reversal of 850865909475371 is 173574909568058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 850865909475371 - 2² = 850865909475367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 850865909475292 and 850865909475301.

It is not a weakly prime, because it can be changed into another prime (850865909475311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425432954737685 + 425432954737686.

It is an arithmetic number, because the mean of its divisors is an integer number (425432954737686).

Almost surely, 2^{850865909475371} is an apocalyptic number.

850865909475371 is a deficient number, since it is larger than the sum of its proper divisors (1).

850865909475371 is an equidigital number, since it uses as much as digits as its factorization.

850865909475371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144000, while the sum is 77.

The spelling of 850865909475371 in words is "eight hundred fifty trillion, eight hundred sixty-five billion, nine hundred nine million, four hundred seventy-five thousand, three hundred seventy-one".