1685485746000 has 800 divisors, whose sum is σ = 7002884858112. Its totient is φ = 382759603200.

The previous prime is 1685485745971. The next prime is 1685485746041. The reversal of 1685485746000 is 6475845861.

1685485746000 is a `hidden beast` number, since 1 + 6 + 8 + 5 + 4 + 8 + 574 + 60 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 178033267 + ... + 178042733.

Almost surely, 2^{1685485746000} is an apocalyptic number.

1685485746000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1685485746000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3501442429056).

1685485746000 is an abundant number, since it is smaller than the sum of its proper divisors (5317399112112).

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

1685485746000 is a wasteful number, since it uses less digits than its factorization.

1685485746000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9666 (or 9641 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 1685485746000 in words is "one trillion, six hundred eighty-five billion, four hundred eighty-five million, seven hundred forty-six thousand".