42606888004820 has 24 divisors (see below), whose sum is σ = 90044365866504. Its totient is φ = 16934202619776.

The previous prime is 42606888004819. The next prime is 42606888004841. The reversal of 42606888004820 is 2840088860624.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1033304778256 + 41573583226564 = 1016516^2 + 6447758^2 .

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, 6784533167 + ... + 6784539446.

It is an arithmetic number, because the mean of its divisors is an integer number (3751848577771).

Almost surely, 2^{42606888004820} is an apocalyptic number.

It is an amenable number.

42606888004820 is an abundant number, since it is smaller than the sum of its proper divisors (47437477861684).

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

42606888004820 is a wasteful number, since it uses less digits than its factorization.

42606888004820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13569072779 (or 13569072777 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 56.

The spelling of 42606888004820 in words is "forty-two trillion, six hundred six billion, eight hundred eighty-eight million, four thousand, eight hundred twenty".