1688449013332 has 48 divisors (see below), whose sum is σ = 3279436820352. Its totient is φ = 757157022720.

The previous prime is 1688449013327. The next prime is 1688449013369. The reversal of 1688449013332 is 2333109448861.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1688449013332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6922128 + ... + 7161895.

It is an arithmetic number, because the mean of its divisors is an integer number (68321600424).

Almost surely, 2^{1688449013332} is an apocalyptic number.

It is an amenable number.

1688449013332 is a deficient number, since it is larger than the sum of its proper divisors (1590987807020).

1688449013332 is a wasteful number, since it uses less digits than its factorization.

1688449013332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14084128 (or 14084126 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 1688449013332 in words is "one trillion, six hundred eighty-eight billion, four hundred forty-nine million, thirteen thousand, three hundred thirty-two".