1585643313842 has 16 divisors (see below), whose sum is σ = 2731128366912. Its totient is φ = 676340748720.

The previous prime is 1585643313803. The next prime is 1585643313901. The reversal of 1585643313842 is 2483133465851.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268386233 + ... + 268392140.

It is an arithmetic number, because the mean of its divisors is an integer number (170695522932).

Almost surely, 2^{1585643313842} is an apocalyptic number.

1585643313842 is a deficient number, since it is larger than the sum of its proper divisors (1145485053070).

1585643313842 is a wasteful number, since it uses less digits than its factorization.

1585643313842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536778593.

The product of its digits is 8294400, while the sum is 53.

The spelling of 1585643313842 in words is "one trillion, five hundred eighty-five billion, six hundred forty-three million, three hundred thirteen thousand, eight hundred forty-two".