1689123695348 has 6 divisors (see below), whose sum is σ = 2955966466866. Its totient is φ = 844561847672.

The previous prime is 1689123695323. The next prime is 1689123695353. The reversal of 1689123695348 is 8435963219861.

It can be written as a sum of positive squares in only one way, i.e., 1289310288484 + 399813406864 = 1135478^2 + 632308^2 .

It is a super-2 number, since 2×1689123695348² (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 as a sum of consecutive naturals, namely, 211140461915 + ... + 211140461922.

It is an arithmetic number, because the mean of its divisors is an integer number (492661077811).

Almost surely, 2^{1689123695348} is an apocalyptic number.

It is an amenable number.

1689123695348 is a deficient number, since it is larger than the sum of its proper divisors (1266842771518).

1689123695348 is a wasteful number, since it uses less digits than its factorization.

1689123695348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422280923841 (or 422280923839 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 65.

The spelling of 1689123695348 in words is "one trillion, six hundred eighty-nine billion, one hundred twenty-three million, six hundred ninety-five thousand, three hundred forty-eight".