805817340394 has 8 divisors (see below), whose sum is σ = 1318610193408. Its totient is φ = 366280609260.

The previous prime is 805817340353. The next prime is 805817340403. The reversal of 805817340394 is 493043718508.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 18314030442 + ... + 18314030485.

It is an arithmetic number, because the mean of its divisors is an integer number (164826274176).

Almost surely, 2^805817340394 is an apocalyptic number.

805817340394 is a deficient number, since it is larger than the sum of its proper divisors (512792853014).

805817340394 is a wasteful number, since it uses less digits than its factorization.

805817340394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36628060940.

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

The spelling of 805817340394 in words is "eight hundred five billion, eight hundred seventeen million, three hundred forty thousand, three hundred ninety-four".