809609164045 has 32 divisors (see below), whose sum is σ = 1061179056000. Its totient is φ = 588070010880.

The previous prime is 809609164037. The next prime is 809609164073. The reversal of 809609164045 is 540461906908.

It is a happy number.

809609164045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 809609164045 - 2³ = 809609164037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 809609163983 and 809609164001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 255476221 + ... + 255479389.

It is an arithmetic number, because the mean of its divisors is an integer number (33161845500).

Almost surely, 2^809609164045 is an apocalyptic number.

It is an amenable number.

809609164045 is a deficient number, since it is larger than the sum of its proper divisors (251569891955).

809609164045 is a wasteful number, since it uses less digits than its factorization.

809609164045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7533.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 809609164045 in words is "eight hundred nine billion, six hundred nine million, one hundred sixty-four thousand, forty-five".