1688671703850 has 24 divisors (see below), whose sum is σ = 4187905825920. Its totient is φ = 450312454320.

The previous prime is 1688671703809. The next prime is 1688671703893. The reversal of 1688671703850 is 583071768861.

It is a super-2 number, since 2×1688671703850² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5628905530 + ... + 5628905829.

It is an arithmetic number, because the mean of its divisors is an integer number (174496076080).

Almost surely, 2^{1688671703850} is an apocalyptic number.

1688671703850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1688671703850 is an abundant number, since it is smaller than the sum of its proper divisors (2499234122070).

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

1688671703850 is a wasteful number, since it uses less digits than its factorization.

1688671703850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11257811374 (or 11257811369 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 60.

The spelling of 1688671703850 in words is "one trillion, six hundred eighty-eight billion, six hundred seventy-one million, seven hundred three thousand, eight hundred fifty".