1690394442275 has 24 divisors (see below), whose sum is σ = 2613305904384. Its totient is φ = 1053752378400.

The previous prime is 1690394442263. The next prime is 1690394442301. The reversal of 1690394442275 is 5722444930961.

It is a happy number.

It is not a de Polignac number, because 1690394442275 - 2²⁰ = 1690393393699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1690394442275.

It is an unprimeable number.

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, 439061567 + ... + 439065416.

It is an arithmetic number, because the mean of its divisors is an integer number (108887746016).

Almost surely, 2^{1690394442275} is an apocalyptic number.

1690394442275 is a deficient number, since it is larger than the sum of its proper divisors (922911462109).

1690394442275 is a wasteful number, since it uses less digits than its factorization.

1690394442275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878127011 (or 878127006 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 1690394442275 in words is "one trillion, six hundred ninety billion, three hundred ninety-four million, four hundred forty-two thousand, two hundred seventy-five".