133891211406 has 8 divisors (see below), whose sum is σ = 267782422824. Its totient is φ = 44630403800.

The previous prime is 133891211381. The next prime is 133891211407. The reversal of 133891211406 is 604112198331.

It is a sphenic number, since it is the product of 3 distinct primes.

133891211406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133891211407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11157600945 + ... + 11157600956.

It is an arithmetic number, because the mean of its divisors is an integer number (33472802853).

Almost surely, 2^133891211406 is an apocalyptic number.

133891211406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

133891211406 is a wasteful number, since it uses less digits than its factorization.

133891211406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22315201906.

The product of its (nonzero) digits is 31104, while the sum is 39.

The spelling of 133891211406 in words is "one hundred thirty-three billion, eight hundred ninety-one million, two hundred eleven thousand, four hundred six".