805711120538 has 8 divisors (see below), whose sum is σ = 1209035306880. Its totient is φ = 402699351580.

The previous prime is 805711120507. The next prime is 805711120559. The reversal of 805711120538 is 835021117508.

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

It is a junction number, because it is equal to n+sod(n) for n = 805711120495 and 805711120504.

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, 78097898 + ... + 78108213.

It is an arithmetic number, because the mean of its divisors is an integer number (151129413360).

Almost surely, 2^805711120538 is an apocalyptic number.

805711120538 is a deficient number, since it is larger than the sum of its proper divisors (403324186342).

805711120538 is a wasteful number, since it uses less digits than its factorization.

805711120538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156208692.

The product of its (nonzero) digits is 67200, while the sum is 41.

The spelling of 805711120538 in words is "eight hundred five billion, seven hundred eleven million, one hundred twenty thousand, five hundred thirty-eight".