1685194975104 has 32 divisors (see below), whose sum is σ = 4476299153640. Its totient is φ = 561731658240.

The previous prime is 1685194975103. The next prime is 1685194975117. The reversal of 1685194975104 is 4015794915861.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685194975103) 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, 2194263907 + ... + 2194264674.

Almost surely, 2^{1685194975104} is an apocalyptic number.

It is an amenable number.

1685194975104 is an abundant number, since it is smaller than the sum of its proper divisors (2791104178536).

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

1685194975104 is an equidigital number, since it uses as much as digits as its factorization.

1685194975104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4388528598 (or 4388528586 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 60.

The spelling of 1685194975104 in words is "one trillion, six hundred eighty-five billion, one hundred ninety-four million, nine hundred seventy-five thousand, one hundred four".