42824872181 has 16 divisors (see below), whose sum is σ = 52713268608. Its totient is φ = 33879729600.

The previous prime is 42824872163. The next prime is 42824872213. The reversal of 42824872181 is 18127842824.

It is a cyclic number.

It is not a de Polignac number, because 42824872181 - 2⁶ = 42824872117 is a prime.

It is a super-2 number, since 2×42824872181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42824872681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073411 + ... + 1112591.

It is an arithmetic number, because the mean of its divisors is an integer number (3294579288).

Almost surely, 2^42824872181 is an apocalyptic number.

It is an amenable number.

42824872181 is a deficient number, since it is larger than the sum of its proper divisors (9888396427).

42824872181 is a wasteful number, since it uses less digits than its factorization.

42824872181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51212.

The product of its digits is 458752, while the sum is 47.

The spelling of 42824872181 in words is "forty-two billion, eight hundred twenty-four million, eight hundred seventy-two thousand, one hundred eighty-one".