42845209864 has 16 divisors (see below), whose sum is σ = 82926213120. Its totient is φ = 20731553040.

The previous prime is 42845209843. The next prime is 42845209873. The reversal of 42845209864 is 46890254824.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86381224 + ... + 86381719.

It is an arithmetic number, because the mean of its divisors is an integer number (5182888320).

Almost surely, 2^42845209864 is an apocalyptic number.

It is an amenable number.

42845209864 is a deficient number, since it is larger than the sum of its proper divisors (40081003256).

42845209864 is a wasteful number, since it uses less digits than its factorization.

42845209864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172762980 (or 172762976 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 42845209864 in words is "forty-two billion, eight hundred forty-five million, two hundred nine thousand, eight hundred sixty-four".