84212116340 has 48 divisors (see below), whose sum is σ = 193292858304. Its totient is φ = 30563769600.

The previous prime is 84212116333. The next prime is 84212116357. The reversal of 84212116340 is 4361121248.

It is a junction number, because it is equal to n+sod(n) for n = 84212116297 and 84212116306.

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 15 ways as a sum of consecutive naturals, for example, 252734 + ... + 481973.

It is an arithmetic number, because the mean of its divisors is an integer number (4026934548).

Almost surely, 2^84212116340 is an apocalyptic number.

It is an amenable number.

84212116340 is an abundant number, since it is smaller than the sum of its proper divisors (109080741964).

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

84212116340 is a wasteful number, since it uses less digits than its factorization.

84212116340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735248 (or 735246 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

Adding to 84212116340 its reverse (4361121248), we get a palindrome (88573237588).

The spelling of 84212116340 in words is "eighty-four billion, two hundred twelve million, one hundred sixteen thousand, three hundred forty".