817214685384 has 64 divisors (see below), whose sum is σ = 2058832558080. Its totient is φ = 270302760000.

The previous prime is 817214685347. The next prime is 817214685533. The reversal of 817214685384 is 483586412718.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3177699 + ... + 3425229.

It is an arithmetic number, because the mean of its divisors is an integer number (32169258720).

Almost surely, 2^817214685384 is an apocalyptic number.

It is an amenable number.

817214685384 is an abundant number, since it is smaller than the sum of its proper divisors (1241617872696).

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

817214685384 is a wasteful number, since it uses less digits than its factorization.

817214685384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248602 (or 248598 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 57.

The spelling of 817214685384 in words is "eight hundred seventeen billion, two hundred fourteen million, six hundred eighty-five thousand, three hundred eighty-four".