800853422618 has 4 divisors (see below), whose sum is σ = 1201280133930. Its totient is φ = 400426711308.

The previous prime is 800853422573. The next prime is 800853422639. The reversal of 800853422618 is 816224358008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 764465189569 + 36388233049 = 874337^2 + 190757^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200213355653 + ... + 200213355656.

Almost surely, 2^800853422618 is an apocalyptic number.

800853422618 is a deficient number, since it is larger than the sum of its proper divisors (400426711312).

800853422618 is a wasteful number, since it uses less digits than its factorization.

800853422618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400426711311.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 800853422618 in words is "eight hundred billion, eight hundred fifty-three million, four hundred twenty-two thousand, six hundred eighteen".