806756643771 has 16 divisors (see below), whose sum is σ = 1226562138144. Its totient is φ = 467261766144.

The previous prime is 806756643761. The next prime is 806756643817. The reversal of 806756643771 is 177346657608.

It is not a de Polignac number, because 806756643771 - 2³⁴ = 789576774587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (806756643701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 608413096 + ... + 608414421.

It is an arithmetic number, because the mean of its divisors is an integer number (76660133634).

Almost surely, 2^806756643771 is an apocalyptic number.

806756643771 is a deficient number, since it is larger than the sum of its proper divisors (419805494373).

806756643771 is a wasteful number, since it uses less digits than its factorization.

806756643771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216827550.

The product of its (nonzero) digits is 35562240, while the sum is 60.

The spelling of 806756643771 in words is "eight hundred six billion, seven hundred fifty-six million, six hundred forty-three thousand, seven hundred seventy-one".