1685638935336 has 16 divisors (see below), whose sum is σ = 4214097338400. Its totient is φ = 561879645104.

The previous prime is 1685638935329. The next prime is 1685638935377. The reversal of 1685638935336 is 6335398365861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35117477796 + ... + 35117477843.

It is an arithmetic number, because the mean of its divisors is an integer number (263381083650).

Almost surely, 2^{1685638935336} is an apocalyptic number.

It is an amenable number.

1685638935336 is an abundant number, since it is smaller than the sum of its proper divisors (2528458403064).

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

1685638935336 is a wasteful number, since it uses less digits than its factorization.

1685638935336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70234955648 (or 70234955644 counting only the distinct ones).

The product of its digits is 251942400, while the sum is 66.

The spelling of 1685638935336 in words is "one trillion, six hundred eighty-five billion, six hundred thirty-eight million, nine hundred thirty-five thousand, three hundred thirty-six".