811201044842 has 8 divisors (see below), whose sum is σ = 1217031038496. Its totient is φ = 405524032012.

The previous prime is 811201044833. The next prime is 811201044847. The reversal of 811201044842 is 248440102118.

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

It is not an unprimeable number, because it can be changed into a prime (811201044847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38231948 + ... + 38253159.

It is an arithmetic number, because the mean of its divisors is an integer number (152128879812).

Almost surely, 2^811201044842 is an apocalyptic number.

811201044842 is a deficient number, since it is larger than the sum of its proper divisors (405829993654).

811201044842 is a wasteful number, since it uses less digits than its factorization.

811201044842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76490412.

The product of its (nonzero) digits is 16384, while the sum is 35.

The spelling of 811201044842 in words is "eight hundred eleven billion, two hundred one million, forty-four thousand, eight hundred forty-two".