19746009729106 has 16 divisors (see below), whose sum is σ = 30036970430208. Its totient is φ = 9733693536000.

The previous prime is 19746009729049. The next prime is 19746009729133. The reversal of 19746009729106 is 60192790064791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3678631 + ... + 7281781.

It is an arithmetic number, because the mean of its divisors is an integer number (1877310651888).

Almost surely, 2^{19746009729106} is an apocalyptic number.

19746009729106 is a deficient number, since it is larger than the sum of its proper divisors (10290960701102).

19746009729106 is a wasteful number, since it uses less digits than its factorization.

19746009729106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641817.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 19746009729106 in words is "nineteen trillion, seven hundred forty-six billion, nine million, seven hundred twenty-nine thousand, one hundred six".