1693344019808 has 48 divisors (see below), whose sum is σ = 3810142828800. Its totient is φ = 725696240256.

The previous prime is 1693344019777. The next prime is 1693344019811. The reversal of 1693344019808 is 8089104433961.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8480285 + ... + 8677667.

It is an arithmetic number, because the mean of its divisors is an integer number (79377975600).

Almost surely, 2^{1693344019808} is an apocalyptic number.

It is an amenable number.

1693344019808 is an abundant number, since it is smaller than the sum of its proper divisors (2116798808992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1693344019808 is a wasteful number, since it uses less digits than its factorization.

1693344019808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235699 (or 235691 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 1693344019808 in words is "one trillion, six hundred ninety-three billion, three hundred forty-four million, nineteen thousand, eight hundred eight".