810093903478 has 4 divisors (see below), whose sum is σ = 1215140855220. Its totient is φ = 405046951738.

The previous prime is 810093903397. The next prime is 810093903497. The reversal of 810093903478 is 874309390018.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202523475868 + ... + 202523475871.

It is an arithmetic number, because the mean of its divisors is an integer number (303785213805).

Almost surely, 2^810093903478 is an apocalyptic number.

810093903478 is a deficient number, since it is larger than the sum of its proper divisors (405046951742).

810093903478 is a wasteful number, since it uses less digits than its factorization.

810093903478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405046951741.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 810093903478 in words is "eight hundred ten billion, ninety-three million, nine hundred three thousand, four hundred seventy-eight".