84943138500 has 576 divisors, whose sum is σ = 316159683840. Its totient is φ = 18973440000.

The previous prime is 84943138499. The next prime is 84943138513. The reversal of 84943138500 is 583134948.

84943138500 is a `hidden beast` number, since 8 + 4 + 9 + 4 + 3 + 138 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 34797280 + ... + 34799720.

It is an arithmetic number, because the mean of its divisors is an integer number (548888340).

Almost surely, 2^84943138500 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 84943138500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158079841920).

84943138500 is an abundant number, since it is smaller than the sum of its proper divisors (231216545340).

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

84943138500 is a wasteful number, since it uses less digits than its factorization.

84943138500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533 (or 2518 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 84943138500 in words is "eighty-four billion, nine hundred forty-three million, one hundred thirty-eight thousand, five hundred".