19946799326 has 16 divisors (see below), whose sum is σ = 30145524864. Its totient is φ = 9898461144.

The previous prime is 19946799287. The next prime is 19946799337. The reversal of 19946799326 is 62399764991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194921 + ... + 279083.

It is an arithmetic number, because the mean of its divisors is an integer number (1884095304).

Almost surely, 2^19946799326 is an apocalyptic number.

19946799326 is a deficient number, since it is larger than the sum of its proper divisors (10198725538).

19946799326 is a wasteful number, since it uses less digits than its factorization.

19946799326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85055.

The product of its digits is 39680928, while the sum is 65.

The spelling of 19946799326 in words is "nineteen billion, nine hundred forty-six million, seven hundred ninety-nine thousand, three hundred twenty-six".