1689687673294 has 16 divisors (see below), whose sum is σ = 2538934944336. Its totient is φ = 843377180800.

The previous prime is 1689687673277. The next prime is 1689687673309. The reversal of 1689687673294 is 4923767869861.

It is a self number, because there is not a number n which added to its sum of digits gives 1689687673294.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2649624 + ... + 3224884.

It is an arithmetic number, because the mean of its divisors is an integer number (158683434021).

Almost surely, 2^{1689687673294} is an apocalyptic number.

1689687673294 is a deficient number, since it is larger than the sum of its proper divisors (849247271042).

1689687673294 is a wasteful number, since it uses less digits than its factorization.

1689687673294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577811.

The product of its digits is 1316818944, while the sum is 76.

The spelling of 1689687673294 in words is "one trillion, six hundred eighty-nine billion, six hundred eighty-seven million, six hundred seventy-three thousand, two hundred ninety-four".