1688307534345 has 64 divisors (see below), whose sum is σ = 2839658976000. Its totient is φ = 855576207360.

The previous prime is 1688307534311. The next prime is 1688307534349. The reversal of 1688307534345 is 5434357038861.

It is not a de Polignac number, because 1688307534345 - 2⁹ = 1688307533833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1688307534349) 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, 9137841 + ... + 9320769.

It is an arithmetic number, because the mean of its divisors is an integer number (44369671500).

Almost surely, 2^{1688307534345} is an apocalyptic number.

1688307534345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1688307534345 is a deficient number, since it is larger than the sum of its proper divisors (1151351441655).

1688307534345 is a wasteful number, since it uses less digits than its factorization.

1688307534345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183370.

The product of its (nonzero) digits is 29030400, while the sum is 57.

The spelling of 1688307534345 in words is "one trillion, six hundred eighty-eight billion, three hundred seven million, five hundred thirty-four thousand, three hundred forty-five".