817807481164 has 24 divisors (see below), whose sum is σ = 1433698818048. Its totient is φ = 408179853840.

The previous prime is 817807481147. The next prime is 817807481177. The reversal of 817807481164 is 461184708718.

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 7 ways as a sum of consecutive naturals, for example, 5407317 + ... + 5556499.

It is an arithmetic number, because the mean of its divisors is an integer number (59737450752).

Almost surely, 2^817807481164 is an apocalyptic number.

It is an amenable number.

817807481164 is a deficient number, since it is larger than the sum of its proper divisors (615891336884).

817807481164 is a wasteful number, since it uses less digits than its factorization.

817807481164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151605 (or 151603 counting only the distinct ones).

The product of its (nonzero) digits is 2408448, while the sum is 55.

The spelling of 817807481164 in words is "eight hundred seventeen billion, eight hundred seven million, four hundred eighty-one thousand, one hundred sixty-four".