133539470784 has 168 divisors, whose sum is σ = 404305121792. Its totient is φ = 42075210240.

The previous prime is 133539470767. The next prime is 133539470797. The reversal of 133539470784 is 487074935331.

133539470784 is a `hidden beast` number, since 1 + 33 + 539 + 4 + 7 + 0 + 78 + 4 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133539470784.

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 23 ways as a sum of consecutive naturals, for example, 680847 + ... + 854769.

Almost surely, 2^133539470784 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 133539470784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202152560896).

133539470784 is an abundant number, since it is smaller than the sum of its proper divisors (270765651008).

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

133539470784 is a wasteful number, since it uses less digits than its factorization.

133539470784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174015 (or 174002 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 133539470784 in words is "one hundred thirty-three billion, five hundred thirty-nine million, four hundred seventy thousand, seven hundred eighty-four".