818870217983 has 8 divisors (see below), whose sum is σ = 832775366160. Its totient is φ = 804965936320.

The previous prime is 818870217941. The next prime is 818870218007. The reversal of 818870217983 is 389712078818.

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

It is a cyclic number.

It is not a de Polignac number, because 818870217983 - 2⁸ = 818870217727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818870217923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1856441 + ... + 2254797.

It is an arithmetic number, because the mean of its divisors is an integer number (104096920770).

Almost surely, 2^818870217983 is an apocalyptic number.

818870217983 is a deficient number, since it is larger than the sum of its proper divisors (13905148177).

818870217983 is a wasteful number, since it uses less digits than its factorization.

818870217983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433257.

The product of its (nonzero) digits is 10838016, while the sum is 62.

The spelling of 818870217983 in words is "eight hundred eighteen billion, eight hundred seventy million, two hundred seventeen thousand, nine hundred eighty-three".