19786484796 has 24 divisors (see below), whose sum is σ = 49719885264. Its totient is φ = 6088149120.

The previous prime is 19786484779. The next prime is 19786484819. The reversal of 19786484796 is 69748468791.

It is a self number, because there is not a number n which added to its sum of digits gives 19786484796.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63418065 + ... + 63418376.

It is an arithmetic number, because the mean of its divisors is an integer number (2071661886).

Almost surely, 2^19786484796 is an apocalyptic number.

It is an amenable number.

19786484796 is an abundant number, since it is smaller than the sum of its proper divisors (29933400468).

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

19786484796 is a wasteful number, since it uses less digits than its factorization.

19786484796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126836461 (or 126836459 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 69.

The spelling of 19786484796 in words is "nineteen billion, seven hundred eighty-six million, four hundred eighty-four thousand, seven hundred ninety-six".