133333334689 has 4 divisors (see below), whose sum is σ = 140350878640. Its totient is φ = 126315790740.

The previous prime is 133333334681. The next prime is 133333334723. The reversal of 133333334689 is 986433333331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 986433333331 = 23 ⋅42888405797.

It is a cyclic number.

It is not a de Polignac number, because 133333334689 - 2³ = 133333334681 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (133333334681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3508771947 + ... + 3508771984.

It is an arithmetic number, because the mean of its divisors is an integer number (35087719660).

Almost surely, 2^133333334689 is an apocalyptic number.

133333334689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

133333334689 is a deficient number, since it is larger than the sum of its proper divisors (7017543951).

133333334689 is an equidigital number, since it uses as much as digits as its factorization.

133333334689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017543950.

The product of its digits is 3779136, while the sum is 49.

The spelling of 133333334689 in words is "one hundred thirty-three billion, three hundred thirty-three million, three hundred thirty-four thousand, six hundred eighty-nine".