19904421915322 has 32 divisors (see below), whose sum is σ = 35974676090880. Its totient is φ = 8068687104240.

The previous prime is 19904421915319. The next prime is 19904421915377. The reversal of 19904421915322 is 22351912440991.

It is a self number, because there is not a number n which added to its sum of digits gives 19904421915322.

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, 59125858 + ... + 59461549.

It is an arithmetic number, because the mean of its divisors is an integer number (1124208627840).

Almost surely, 2^{19904421915322} is an apocalyptic number.

19904421915322 is a deficient number, since it is larger than the sum of its proper divisors (16070254175558).

19904421915322 is a wasteful number, since it uses less digits than its factorization.

19904421915322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118588066.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The spelling of 19904421915322 in words is "nineteen trillion, nine hundred four billion, four hundred twenty-one million, nine hundred fifteen thousand, three hundred twenty-two".