809234234493 has 16 divisors (see below), whose sum is σ = 1085684535936. Its totient is φ = 536138168000.

The previous prime is 809234234489. The next prime is 809234234527. The reversal of 809234234493 is 394432432908.

It is a cyclic number.

It is not a de Polignac number, because 809234234493 - 2² = 809234234489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809234234423) 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, 2071243 + ... + 2430743.

It is an arithmetic number, because the mean of its divisors is an integer number (67855283496).

Almost surely, 2^809234234493 is an apocalyptic number.

It is an amenable number.

809234234493 is a deficient number, since it is larger than the sum of its proper divisors (276450301443).

809234234493 is a wasteful number, since it uses less digits than its factorization.

809234234493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364164.

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 809234234493 in words is "eight hundred nine billion, two hundred thirty-four million, two hundred thirty-four thousand, four hundred ninety-three".