42040942544709 has 48 divisors (see below), whose sum is σ = 64911502234800. Its totient is φ = 26127759114240.

The previous prime is 42040942544647. The next prime is 42040942544717. The reversal of 42040942544709 is 90744524904024.

42040942544709 is a `hidden beast` number, since 4 + 2 + 0 + 4 + 0 + 94 + 2 + 544 + 7 + 0 + 9 = 666.

42040942544709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 522533808225 + 41518408736484 = 722865^2 + 6443478^2 .

It is not a de Polignac number, because 42040942544709 - 2¹² = 42040942540613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42040942544779) 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 47 ways as a sum of consecutive naturals, for example, 7177999 + ... + 11644979.

It is an arithmetic number, because the mean of its divisors is an integer number (1352322963225).

Almost surely, 2^{42040942544709} is an apocalyptic number.

It is an amenable number.

42040942544709 is a deficient number, since it is larger than the sum of its proper divisors (22870559690091).

42040942544709 is a wasteful number, since it uses less digits than its factorization.

42040942544709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4467590 (or 4467587 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 54.

The spelling of 42040942544709 in words is "forty-two trillion, forty billion, nine hundred forty-two million, five hundred forty-four thousand, seven hundred nine".