1685020038350 has 24 divisors (see below), whose sum is σ = 3419058842568. Its totient is φ = 612734559200.

The previous prime is 1685020038347. The next prime is 1685020038371. The reversal of 1685020038350 is 538300205861.

It is a junction number, because it is equal to n+sod(n) for n = 1685020038298 and 1685020038307.

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 11 ways as a sum of consecutive naturals, for example, 1531835849 + ... + 1531836948.

It is an arithmetic number, because the mean of its divisors is an integer number (142460785107).

Almost surely, 2^{1685020038350} is an apocalyptic number.

1685020038350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1685020038350 is an abundant number, since it is smaller than the sum of its proper divisors (1734038804218).

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

1685020038350 is a wasteful number, since it uses less digits than its factorization.

1685020038350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063672820 (or 3063672815 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 1685020038350 in words is "one trillion, six hundred eighty-five billion, twenty million, thirty-eight thousand, three hundred fifty".