1685243085628 has 12 divisors (see below), whose sum is σ = 2949342322752. Its totient is φ = 842573850560.

The previous prime is 1685243085623. The next prime is 1685243085637. The reversal of 1685243085628 is 8265803425861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685243085623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11843500 + ... + 11984947.

It is an arithmetic number, because the mean of its divisors is an integer number (245778526896).

Almost surely, 2^{1685243085628} is an apocalyptic number.

It is an amenable number.

1685243085628 is a deficient number, since it is larger than the sum of its proper divisors (1264099237124).

1685243085628 is a wasteful number, since it uses less digits than its factorization.

1685243085628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23846132 (or 23846130 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 58.

The spelling of 1685243085628 in words is "one trillion, six hundred eighty-five billion, two hundred forty-three million, eighty-five thousand, six hundred twenty-eight".