800020188382 has 4 divisors (see below), whose sum is σ = 1200030282576. Its totient is φ = 400010094190.

The previous prime is 800020188311. The next prime is 800020188389. The reversal of 800020188382 is 283881020008.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800020188389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200005047094 + ... + 200005047097.

It is an arithmetic number, because the mean of its divisors is an integer number (300007570644).

Almost surely, 2^800020188382 is an apocalyptic number.

800020188382 is a deficient number, since it is larger than the sum of its proper divisors (400010094194).

800020188382 is a wasteful number, since it uses less digits than its factorization.

800020188382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400010094193.

The product of its (nonzero) digits is 49152, while the sum is 40.

The spelling of 800020188382 in words is "eight hundred billion, twenty million, one hundred eighty-eight thousand, three hundred eighty-two".