810038404668 has 24 divisors (see below), whose sum is σ = 1914014798080. Its totient is φ = 266594917680.

The previous prime is 810038404661. The next prime is 810038404699. The reversal of 810038404668 is 866404830018.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810038404661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427234498 + ... + 427236393.

Almost surely, 2^810038404668 is an apocalyptic number.

It is an amenable number.

810038404668 is an abundant number, since it is smaller than the sum of its proper divisors (1103976393412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810038404668 is a wasteful number, since it uses less digits than its factorization.

810038404668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854470977 (or 854470975 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 810038404668 in words is "eight hundred ten billion, thirty-eight million, four hundred four thousand, six hundred sixty-eight".