1688378052683 has 64 divisors (see below), whose sum is σ = 2067271372800. Its totient is φ = 1347827712000.

The previous prime is 1688378052671. The next prime is 1688378052703. The reversal of 1688378052683 is 3862508738861.

It is a de Polignac number, because none of the positive numbers 2^k-1688378052683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1688378051683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 518382791 + ... + 518386047.

It is an arithmetic number, because the mean of its divisors is an integer number (32301115200).

Almost surely, 2^{1688378052683} is an apocalyptic number.

1688378052683 is a deficient number, since it is larger than the sum of its proper divisors (378893320117).

1688378052683 is a wasteful number, since it uses less digits than its factorization.

1688378052683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908.

The product of its (nonzero) digits is 92897280, while the sum is 65.

The spelling of 1688378052683 in words is "one trillion, six hundred eighty-eight billion, three hundred seventy-eight million, fifty-two thousand, six hundred eighty-three".