42643123326 has 32 divisors (see below), whose sum is σ = 94792231200. Its totient is φ = 14209914240.

The previous prime is 42643123321. The next prime is 42643123333. The reversal of 42643123326 is 62332134624.

42643123326 is a `hidden beast` number, since 4 + 2 + 6 + 4 + 312 + 332 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42643123321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 52086 + ... + 296646.

It is an arithmetic number, because the mean of its divisors is an integer number (2962257225).

Almost surely, 2^42643123326 is an apocalyptic number.

42643123326 is an abundant number, since it is smaller than the sum of its proper divisors (52149107874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42643123326 is a wasteful number, since it uses less digits than its factorization.

42643123326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247801 (or 247795 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The spelling of 42643123326 in words is "forty-two billion, six hundred forty-three million, one hundred twenty-three thousand, three hundred twenty-six".