1685038318734 has 128 divisors (see below), whose sum is σ = 3747166064640. Its totient is φ = 502811836416.

The previous prime is 1685038318721. The next prime is 1685038318837. The reversal of 1685038318734 is 4378138305861.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 163005214 + ... + 163015550.

It is an arithmetic number, because the mean of its divisors is an integer number (29274734880).

Almost surely, 2^{1685038318734} is an apocalyptic number.

1685038318734 is an abundant number, since it is smaller than the sum of its proper divisors (2062127745906).

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

1685038318734 is a wasteful number, since it uses less digits than its factorization.

1685038318734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11362.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 1685038318734 in words is "one trillion, six hundred eighty-five billion, thirty-eight million, three hundred eighteen thousand, seven hundred thirty-four".