42005054356 has 6 divisors (see below), whose sum is σ = 73508845130. Its totient is φ = 21002527176.

The previous prime is 42005054323. The next prime is 42005054381. The reversal of 42005054356 is 65345050024.

It can be written as a sum of positive squares in only one way, i.e., 27589210000 + 14415844356 = 166100^2 + 120066^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250631791 + ... + 5250631798.

Almost surely, 2^42005054356 is an apocalyptic number.

It is an amenable number.

42005054356 is a deficient number, since it is larger than the sum of its proper divisors (31503790774).

42005054356 is a wasteful number, since it uses less digits than its factorization.

42005054356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501263593 (or 10501263591 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 42005054356 in words is "forty-two billion, five million, fifty-four thousand, three hundred fifty-six".