84218643311 has 8 divisors (see below), whose sum is σ = 92042851584. Its totient is φ = 76422429720.

The previous prime is 84218643307. The next prime is 84218643319. The reversal of 84218643311 is 11334681248.

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 84218643311 - 2² = 84218643307 is a prime.

It is a super-2 number, since 2×84218643311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84218643319) 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, 6992375 + ... + 7004408.

It is an arithmetic number, because the mean of its divisors is an integer number (11505356448).

Almost surely, 2^84218643311 is an apocalyptic number.

84218643311 is a deficient number, since it is larger than the sum of its proper divisors (7824208273).

84218643311 is a wasteful number, since it uses less digits than its factorization.

84218643311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13997341.

The product of its digits is 110592, while the sum is 41.

The spelling of 84218643311 in words is "eighty-four billion, two hundred eighteen million, six hundred forty-three thousand, three hundred eleven".