810342121243018 has 96 divisors (see below), whose sum is σ = 1523651704848000. Its totient is φ = 320381071549056.

The previous prime is 810342121242961. The next prime is 810342121243019.

810342121243018 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (810342121243019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28851131371 + ... + 28851159457.

It is an arithmetic number, because the mean of its divisors is an integer number (15871371925500).

Almost surely, 2^{810342121243018} is an apocalyptic number.

810342121243018 is a deficient number, since it is larger than the sum of its proper divisors (713309583604982).

810342121243018 is a wasteful number, since it uses less digits than its factorization.

810342121243018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41004 (or 40997 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 810342121243018 in words is "eight hundred ten trillion, three hundred forty-two billion, one hundred twenty-one million, two hundred forty-three thousand, eighteen".