84622747860 has 576 divisors, whose sum is σ = 316377944064. Its totient is φ = 17899315200.

The previous prime is 84622747793. The next prime is 84622747873. The reversal of 84622747860 is 6874722648.

It is a happy number.

84622747860 is a `hidden beast` number, since 8 + 4 + 622 + 7 + 4 + 7 + 8 + 6 + 0 = 666.

It is a super-3 number, since 3×84622747860³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 84622747797 and 84622747806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 84876882 + ... + 84877878.

It is an arithmetic number, because the mean of its divisors is an integer number (549267264).

Almost surely, 2^84622747860 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 84622747860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158188972032).

84622747860 is an abundant number, since it is smaller than the sum of its proper divisors (231755196204).

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

84622747860 is a wasteful number, since it uses less digits than its factorization.

84622747860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 84622747860 in words is "eighty-four billion, six hundred twenty-two million, seven hundred forty-seven thousand, eight hundred sixty".