42180480731 has 8 divisors (see below), whose sum is σ = 43164020880. Its totient is φ = 41203891872.

The previous prime is 42180480707. The next prime is 42180480737. The reversal of 42180480731 is 13708408124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42180480731 - 2¹⁰ = 42180479707 is a prime.

It is a super-2 number, since 2×42180480731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42180480737) 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 7 ways as a sum of consecutive naturals, for example, 1725545 + ... + 1749818.

It is an arithmetic number, because the mean of its divisors is an integer number (5395502610).

Almost surely, 2^42180480731 is an apocalyptic number.

42180480731 is a deficient number, since it is larger than the sum of its proper divisors (983540149).

42180480731 is a wasteful number, since it uses less digits than its factorization.

42180480731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475645.

The product of its (nonzero) digits is 43008, while the sum is 38.

Adding to 42180480731 its reverse (13708408124), we get a palindrome (55888888855).

The spelling of 42180480731 in words is "forty-two billion, one hundred eighty million, four hundred eighty thousand, seven hundred thirty-one".