19429424825966 has 32 divisors (see below), whose sum is σ = 29297182916736. Its totient is φ = 9663866784000.

The previous prime is 19429424825933. The next prime is 19429424825983. The reversal of 19429424825966 is 66952842492491.

It is a self number, because there is not a number n which added to its sum of digits gives 19429424825966.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458511956 + ... + 458554328.

It is an arithmetic number, because the mean of its divisors is an integer number (915536966148).

Almost surely, 2^{19429424825966} is an apocalyptic number.

19429424825966 is a deficient number, since it is larger than the sum of its proper divisors (9867758090770).

19429424825966 is a wasteful number, since it uses less digits than its factorization.

19429424825966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44348.

The product of its digits is 537477120, while the sum is 71.

The spelling of 19429424825966 in words is "nineteen trillion, four hundred twenty-nine billion, four hundred twenty-four million, eight hundred twenty-five thousand, nine hundred sixty-six".