133584738643 has 4 divisors (see below), whose sum is σ = 133603755880. Its totient is φ = 133565721408.

The previous prime is 133584738629. The next prime is 133584738653. The reversal of 133584738643 is 346837485331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133584738643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133584738653) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9498078 + ... + 9512131.

It is an arithmetic number, because the mean of its divisors is an integer number (33400938970).

Almost surely, 2^133584738643 is an apocalyptic number.

133584738643 is a deficient number, since it is larger than the sum of its proper divisors (19017237).

133584738643 is an equidigital number, since it uses as much as digits as its factorization.

133584738643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19017236.

The product of its digits is 17418240, while the sum is 55.

The spelling of 133584738643 in words is "one hundred thirty-three billion, five hundred eighty-four million, seven hundred thirty-eight thousand, six hundred forty-three".