84134994944 has 352 divisors, whose sum is σ = 228897177600. Its totient is φ = 29846568960.

The previous prime is 84134994941. The next prime is 84134994949. The reversal of 84134994944 is 44949943148.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (352).

It is not an unprimeable number, because it can be changed into a prime (84134994941) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80976377 + ... + 80977415.

Almost surely, 2^84134994944 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 84134994944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114448588800).

84134994944 is an abundant number, since it is smaller than the sum of its proper divisors (144762182656).

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

84134994944 is a wasteful number, since it uses less digits than its factorization.

84134994944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1151 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 59.

The spelling of 84134994944 in words is "eighty-four billion, one hundred thirty-four million, nine hundred ninety-four thousand, nine hundred forty-four".