84074186844 has 144 divisors (see below), whose sum is σ = 230247064320. Its totient is φ = 26774478720.

The previous prime is 84074186759. The next prime is 84074186869. The reversal of 84074186844 is 44868147048.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 25238259 + ... + 25241589.

Almost surely, 2^84074186844 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 84074186844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115123532160).

84074186844 is an abundant number, since it is smaller than the sum of its proper divisors (146172877476).

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

84074186844 is a wasteful number, since it uses less digits than its factorization.

84074186844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502 (or 4488 counting only the distinct ones).

The product of its (nonzero) digits is 5505024, while the sum is 54.

The spelling of 84074186844 in words is "eighty-four billion, seventy-four million, one hundred eighty-six thousand, eight hundred forty-four".