19768510620683 has 4 divisors (see below), whose sum is σ = 21565647949848. Its totient is φ = 17971373291520.

The previous prime is 19768510620679. The next prime is 19768510620701. The reversal of 19768510620683 is 38602601586791.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 19768510620683 - 2² = 19768510620679 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19768510620613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898568664566 + ... + 898568664587.

It is an arithmetic number, because the mean of its divisors is an integer number (5391411987462).

Almost surely, 2^{19768510620683} is an apocalyptic number.

19768510620683 is a deficient number, since it is larger than the sum of its proper divisors (1797137329165).

19768510620683 is a wasteful number, since it uses less digits than its factorization.

19768510620683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797137329164.

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 19768510620683 in words is "nineteen trillion, seven hundred sixty-eight billion, five hundred ten million, six hundred twenty thousand, six hundred eighty-three".