19106979984 has 45 divisors (see below), whose sum is σ = 53477649043. Its totient is φ = 6368440416.

The previous prime is 19106979977. The next prime is 19106979989. The reversal of 19106979984 is 48997960191.

The square root of 19106979984 is 138228.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19106979989) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1652977 + ... + 1664495.

Almost surely, 2^19106979984 is an apocalyptic number.

19106979984 is the 138228-th square number.

It is an amenable number.

19106979984 is an abundant number, since it is smaller than the sum of its proper divisors (34370669059).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19106979984 is an frugal number, since it uses more digits than its factorization.

19106979984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23052 (or 11524 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 63.

The spelling of 19106979984 in words is "nineteen billion, one hundred six million, nine hundred seventy-nine thousand, nine hundred eighty-four".