1693840679999 has 8 divisors (see below), whose sum is σ = 1825229091840. Its totient is φ = 1562608407456.

The previous prime is 1693840679933. The next prime is 1693840680001. The reversal of 1693840679999 is 9999760483961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1693840679999 - 2¹² = 1693840675903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1693840676999) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39012287 + ... + 39055680.

It is an arithmetic number, because the mean of its divisors is an integer number (228153636480).

Almost surely, 2^{1693840679999} is an apocalyptic number.

1693840679999 is a deficient number, since it is larger than the sum of its proper divisors (131388411841).

1693840679999 is a wasteful number, since it uses less digits than its factorization.

1693840679999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78069649.

The product of its (nonzero) digits is 1428513408, while the sum is 80.

The spelling of 1693840679999 in words is "one trillion, six hundred ninety-three billion, eight hundred forty million, six hundred seventy-nine thousand, nine hundred ninety-nine".