1685365248384 has 192 divisors, whose sum is σ = 4978964090880. Its totient is φ = 546953395200.

The previous prime is 1685365248361. The next prime is 1685365248433. The reversal of 1685365248384 is 4838425635861.

1685365248384 is a `hidden beast` number, since 1 + 6 + 8 + 5 + 3 + 6 + 5 + 248 + 384 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-2 number, since 2×1685365248384² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10260019 + ... + 10422989.

It is an arithmetic number, because the mean of its divisors is an integer number (25932104640).

Almost surely, 2^{1685365248384} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1685365248384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2489482045440).

1685365248384 is an abundant number, since it is smaller than the sum of its proper divisors (3293598842496).

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

1685365248384 is a wasteful number, since it uses less digits than its factorization.

1685365248384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163229 (or 163214 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 63.

The spelling of 1685365248384 in words is "one trillion, six hundred eighty-five billion, three hundred sixty-five million, two hundred forty-eight thousand, three hundred eighty-four".