1689061673485 has 64 divisors (see below), whose sum is σ = 2245141463040. Its totient is φ = 1214964576000.

The previous prime is 1689061673479. The next prime is 1689061673489. The reversal of 1689061673485 is 5843761609861.

It is not a de Polignac number, because 1689061673485 - 2³ = 1689061673477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689061673489) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39915999 + ... + 39958291.

It is an arithmetic number, because the mean of its divisors is an integer number (35080335360).

Almost surely, 2^{1689061673485} is an apocalyptic number.

It is an amenable number.

1689061673485 is a deficient number, since it is larger than the sum of its proper divisors (556079789555).

1689061673485 is a wasteful number, since it uses less digits than its factorization.

1689061673485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42610.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 1689061673485 in words is "one trillion, six hundred eighty-nine billion, sixty-one million, six hundred seventy-three thousand, four hundred eighty-five".