809540214676 has 12 divisors (see below), whose sum is σ = 1500030397908. Its totient is φ = 380960100992.

The previous prime is 809540214667. The next prime is 809540214683. The reversal of 809540214676 is 676412045908.

It can be written as a sum of positive squares in 2 ways, for example, as 717961350276 + 91578864400 = 847326^2 + 302620^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5952501511 + ... + 5952501646.

It is an arithmetic number, because the mean of its divisors is an integer number (125002533159).

Almost surely, 2^809540214676 is an apocalyptic number.

It is an amenable number.

809540214676 is a deficient number, since it is larger than the sum of its proper divisors (690490183232).

809540214676 is a wasteful number, since it uses less digits than its factorization.

809540214676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11905003178 (or 11905003176 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 809540214676 in words is "eight hundred nine billion, five hundred forty million, two hundred fourteen thousand, six hundred seventy-six".