42643888852 has 24 divisors (see below), whose sum is σ = 77911690752. Its totient is φ = 20384364000.

The previous prime is 42643888769. The next prime is 42643888871. The reversal of 42643888852 is 25888834624.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 60702 + ... + 298282.

It is an arithmetic number, because the mean of its divisors is an integer number (3246320448).

Almost surely, 2^42643888852 is an apocalyptic number.

It is an amenable number.

42643888852 is a deficient number, since it is larger than the sum of its proper divisors (35267801900).

42643888852 is a wasteful number, since it uses less digits than its factorization.

42643888852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239559 (or 239557 counting only the distinct ones).

The product of its digits is 23592960, while the sum is 58.

The spelling of 42643888852 in words is "forty-two billion, six hundred forty-three million, eight hundred eighty-eight thousand, eight hundred fifty-two".