851168771 has 12 divisors (see below), whose sum is σ = 865737600. Its totient is φ = 836814720.

The previous prime is 851168761. The next prime is 851168777. The reversal of 851168771 is 177861158.

It is a de Polignac number, because none of the positive numbers 2^k-851168771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851168777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2438705 + ... + 2439053.

It is an arithmetic number, because the mean of its divisors is an integer number (72144800).

Almost surely, 2^851168771 is an apocalyptic number.

851168771 is a deficient number, since it is larger than the sum of its proper divisors (14568829).

851168771 is a wasteful number, since it uses less digits than its factorization.

851168771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 653 counting only the distinct ones).

The product of its digits is 94080, while the sum is 44.

The square root of 851168771 is about 29174.7968459079. The cubic root of 851168771 is about 947.7022107483.

The spelling of 851168771 in words is "eight hundred fifty-one million, one hundred sixty-eight thousand, seven hundred seventy-one".