133645446719 has 8 divisors (see below), whose sum is σ = 133741964160. Its totient is φ = 133548966936.

The previous prime is 133645446713. The next prime is 133645446761. The reversal of 133645446719 is 917644546331.

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

It is a cyclic number.

It is not a de Polignac number, because 133645446719 - 2⁸ = 133645446463 is a prime.

It is a super-2 number, since 2×133645446719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133645446713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11735102 + ... + 11746484.

It is an arithmetic number, because the mean of its divisors is an integer number (16717745520).

Almost surely, 2^133645446719 is an apocalyptic number.

133645446719 is a deficient number, since it is larger than the sum of its proper divisors (96517441).

133645446719 is a wasteful number, since it uses less digits than its factorization.

133645446719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18829.

The product of its digits is 6531840, while the sum is 53.

The spelling of 133645446719 in words is "one hundred thirty-three billion, six hundred forty-five million, four hundred forty-six thousand, seven hundred nineteen".