42803286021 has 12 divisors (see below), whose sum is σ = 61829876940. Its totient is φ = 28534181760.

The previous prime is 42803286017. The next prime is 42803286023. The reversal of 42803286021 is 12068230824.

42803286021 is a `hidden beast` number, since 4 + 28 + 0 + 3 + 28 + 602 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3316032225 + 39487253796 = 57585^2 + 198714^2 .

It is not a de Polignac number, because 42803286021 - 2² = 42803286017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42803286023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114141 + ... + 314061.

It is an arithmetic number, because the mean of its divisors is an integer number (5152489745).

Almost surely, 2^42803286021 is an apocalyptic number.

It is an amenable number.

42803286021 is a deficient number, since it is larger than the sum of its proper divisors (19026590919).

42803286021 is a wasteful number, since it uses less digits than its factorization.

42803286021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223716 (or 223713 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 42803286021 in words is "forty-two billion, eight hundred three million, two hundred eighty-six thousand, twenty-one".