42180533641 has 7 divisors (see below), whose sum is σ = 42907784221. Its totient is φ = 41465609342.

The previous prime is 42180533639. The next prime is 42180533663. The reversal of 42180533641 is 14633508124.

The square root of 42180533641 is 205379.

The cubic root of 42180533641 is 3481.

It is a perfect power (a square, a cube, a 6-th power), and thus also a powerful number.

It is not a de Polignac number, because 42180533641 - 2¹ = 42180533639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42180533641.

It is not an unprimeable number, because it can be changed into a prime (42180563641) by changing a digit.

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 6 ways as a sum of consecutive naturals, for example, 714924270 + ... + 714924328.

Almost surely, 2^42180533641 is an apocalyptic number.

42180533641 is the 205379-th square number.

42180533641 is the 102690-th centered octagonal number.

It is an amenable number.

42180533641 is a deficient number, since it is larger than the sum of its proper divisors (727250580).

42180533641 is an frugal number, since it uses more digits than its factorization.

42180533641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 42180533641 in words is "forty-two billion, one hundred eighty million, five hundred thirty-three thousand, six hundred forty-one".