190886669729 has 24 divisors (see below), whose sum is σ = 232334217600. Its totient is φ = 156471540456.

The previous prime is 190886669723. The next prime is 190886669747. The reversal of 190886669729 is 927966688091.

It is not a de Polignac number, because 190886669729 - 2²⁰ = 190885621153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190886669723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38803532 + ... + 38808450.

It is an arithmetic number, because the mean of its divisors is an integer number (9680592400).

Almost surely, 2^190886669729 is an apocalyptic number.

It is an amenable number.

190886669729 is a deficient number, since it is larger than the sum of its proper divisors (41447547871).

190886669729 is an frugal number, since it uses more digits than its factorization.

190886669729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882 (or 4949 counting only the distinct ones).

The product of its (nonzero) digits is 141087744, while the sum is 71.

The spelling of 190886669729 in words is "one hundred ninety billion, eight hundred eighty-six million, six hundred sixty-nine thousand, seven hundred twenty-nine".