19768510620682 has 24 divisors (see below), whose sum is σ = 29854866508740. Its totient is φ = 9817044799680.

The previous prime is 19768510620679. The next prime is 19768510620701. The reversal of 19768510620682 is 28602601586791.

It can be written as a sum of positive squares in 2 ways, for example, as 17641839647961 + 2126670972721 = 4200219^2 + 1458311^2 .

It is a super-2 number, since 2×19768510620682² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19768510620682.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224167494 + ... + 224255662.

Almost surely, 2^{19768510620682} is an apocalyptic number.

19768510620682 is a deficient number, since it is larger than the sum of its proper divisors (10086355888058).

19768510620682 is an frugal number, since it uses more digits than its factorization.

19768510620682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89926 (or 89139 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 19768510620682 in words is "nineteen trillion, seven hundred sixty-eight billion, five hundred ten million, six hundred twenty thousand, six hundred eighty-two".