1688404339142 has 8 divisors (see below), whose sum is σ = 2547245853216. Its totient is φ = 839322388072.

The previous prime is 1688404339133. The next prime is 1688404339157. The reversal of 1688404339142 is 2419334048861.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439890318 + ... + 2439891009.

It is an arithmetic number, because the mean of its divisors is an integer number (318405731652).

Almost surely, 2^{1688404339142} is an apocalyptic number.

1688404339142 is a deficient number, since it is larger than the sum of its proper divisors (858841514074).

1688404339142 is a wasteful number, since it uses less digits than its factorization.

1688404339142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879781502.

The product of its (nonzero) digits is 3981312, while the sum is 53.

The spelling of 1688404339142 in words is "one trillion, six hundred eighty-eight billion, four hundred four million, three hundred thirty-nine thousand, one hundred forty-two".