1683423385690 has 16 divisors (see below), whose sum is σ = 3030177315528. Its totient is φ = 673365971776.

The previous prime is 1683423385667. The next prime is 1683423385717. The reversal of 1683423385690 is 965833243861.

It can be written as a sum of positive squares in 4 ways, for example, as 1681941828609 + 1481557081 = 1296897^2 + 38491^2 .

It is a super-2 number, since 2×1683423385690² (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 (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2944464 + ... + 3469396.

Almost surely, 2^{1683423385690} is an apocalyptic number.

1683423385690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1683423385690 is a deficient number, since it is larger than the sum of its proper divisors (1346753929838).

1683423385690 is a wasteful number, since it uses less digits than its factorization.

1683423385690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845633.

The product of its (nonzero) digits is 22394880, while the sum is 58.

The spelling of 1683423385690 in words is "one trillion, six hundred eighty-three billion, four hundred twenty-three million, three hundred eighty-five thousand, six hundred ninety".