818135010478 has 8 divisors (see below), whose sum is σ = 1227216031272. Its totient is φ = 409063000056.

The previous prime is 818135010461. The next prime is 818135010493. The reversal of 818135010478 is 874010531818.

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

It is a congruent number.

It is an unprimeable number.

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, 2020825 + ... + 2391652.

It is an arithmetic number, because the mean of its divisors is an integer number (153402003909).

Almost surely, 2^818135010478 is an apocalyptic number.

818135010478 is a deficient number, since it is larger than the sum of its proper divisors (409081020794).

818135010478 is a wasteful number, since it uses less digits than its factorization.

818135010478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505186.

The product of its (nonzero) digits is 215040, while the sum is 46.

The spelling of 818135010478 in words is "eight hundred eighteen billion, one hundred thirty-five million, ten thousand, four hundred seventy-eight".