19768523484 has 12 divisors (see below), whose sum is σ = 46126554824. Its totient is φ = 6589507824.

The previous prime is 19768523461. The next prime is 19768523497. The reversal of 19768523484 is 48432586791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 823688467 + ... + 823688490.

Almost surely, 2^19768523484 is an apocalyptic number.

It is an amenable number.

19768523484 is an abundant number, since it is smaller than the sum of its proper divisors (26358031340).

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

19768523484 is a wasteful number, since it uses less digits than its factorization.

19768523484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647376964 (or 1647376962 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The spelling of 19768523484 in words is "nineteen billion, seven hundred sixty-eight million, five hundred twenty-three thousand, four hundred eighty-four".