805723548068 has 6 divisors (see below), whose sum is σ = 1410016209126. Its totient is φ = 402861774032.

The previous prime is 805723548023. The next prime is 805723548121. The reversal of 805723548068 is 860845327508.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 786357485824 + 19366062244 = 886768^2 + 139162^2 .

It is a super-2 number, since 2×805723548068² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100715443505 + ... + 100715443512.

It is an arithmetic number, because the mean of its divisors is an integer number (235002701521).

Almost surely, 2^805723548068 is an apocalyptic number.

It is an amenable number.

805723548068 is a deficient number, since it is larger than the sum of its proper divisors (604292661058).

805723548068 is a wasteful number, since it uses less digits than its factorization.

805723548068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201430887021 (or 201430887019 counting only the distinct ones).

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 805723548068 in words is "eight hundred five billion, seven hundred twenty-three million, five hundred forty-eight thousand, sixty-eight".