19804354322 has 16 divisors (see below), whose sum is σ = 31308077760. Its totient is φ = 9369596592.

The previous prime is 19804354321. The next prime is 19804354331. The reversal of 19804354322 is 22345340891.

It is a super-2 number, since 2×19804354322² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19804354322.

It is not an unprimeable number, because it can be changed into a prime (19804354321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285353 + ... + 347900.

It is an arithmetic number, because the mean of its divisors is an integer number (1956754860).

Almost surely, 2^19804354322 is an apocalyptic number.

19804354322 is a deficient number, since it is larger than the sum of its proper divisors (11503723438).

19804354322 is a wasteful number, since it uses less digits than its factorization.

19804354322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634097.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 19804354322 in words is "nineteen billion, eight hundred four million, three hundred fifty-four thousand, three hundred twenty-two".