19722079084 has 6 divisors (see below), whose sum is σ = 34513638404. Its totient is φ = 9861039540.

The previous prime is 19722079067. The next prime is 19722079099. The reversal of 19722079084 is 48097022791.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2465259882 + ... + 2465259889.

Almost surely, 2^19722079084 is an apocalyptic number.

It is an amenable number.

19722079084 is a deficient number, since it is larger than the sum of its proper divisors (14791559320).

19722079084 is a wasteful number, since it uses less digits than its factorization.

19722079084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930519775 (or 4930519773 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 19722079084 in words is "nineteen billion, seven hundred twenty-two million, seventy-nine thousand, eighty-four".