1689495050523 has 24 divisors (see below), whose sum is σ = 2633609395200. Its totient is φ = 960574340880.

The previous prime is 1689495050519. The next prime is 1689495050533. The reversal of 1689495050523 is 3250505949861.

It is a happy number.

It is not a de Polignac number, because 1689495050523 - 2² = 1689495050519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1689495050513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28848043 + ... + 28906548.

It is an arithmetic number, because the mean of its divisors is an integer number (109733724800).

Almost surely, 2^{1689495050523} is an apocalyptic number.

1689495050523 is a deficient number, since it is larger than the sum of its proper divisors (944114344677).

1689495050523 is a wasteful number, since it uses less digits than its factorization.

1689495050523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57754807 (or 57754800 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 57.

The spelling of 1689495050523 in words is "one trillion, six hundred eighty-nine billion, four hundred ninety-five million, fifty thousand, five hundred twenty-three".