84211934724 has 72 divisors (see below), whose sum is σ = 218525448960. Its totient is φ = 27330941952.

The previous prime is 84211934717. The next prime is 84211934773. The reversal of 84211934724 is 42743911248.

84211934724 is a `hidden beast` number, since 84 + 2 + 11 + 93 + 472 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 84211934724.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197617 + ... + 455495.

It is an arithmetic number, because the mean of its divisors is an integer number (3035075680).

Almost surely, 2^84211934724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84211934724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109262724480).

84211934724 is an abundant number, since it is smaller than the sum of its proper divisors (134313514236).

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

84211934724 is a wasteful number, since it uses less digits than its factorization.

84211934724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258129 (or 258124 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 84211934724 in words is "eighty-four billion, two hundred eleven million, nine hundred thirty-four thousand, seven hundred twenty-four".