84204443709 has 12 divisors (see below), whose sum is σ = 121910847552. Its totient is φ = 56006046600.

The previous prime is 84204443681. The next prime is 84204443731. The reversal of 84204443709 is 90734440248.

84204443709 is a `hidden beast` number, since 8 + 4 + 204 + 4 + 437 + 0 + 9 = 666.

It is not a de Polignac number, because 84204443709 - 2²⁸ = 83936008253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84204443209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10850007 + ... + 10857764.

It is an arithmetic number, because the mean of its divisors is an integer number (10159237296).

Almost surely, 2^84204443709 is an apocalyptic number.

It is an amenable number.

84204443709 is a deficient number, since it is larger than the sum of its proper divisors (37706403843).

84204443709 is a wasteful number, since it uses less digits than its factorization.

84204443709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21708208 (or 21708205 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 84204443709 in words is "eighty-four billion, two hundred four million, four hundred forty-three thousand, seven hundred nine".