42775458181 has 8 divisors (see below), whose sum is σ = 42926587200. Its totient is φ = 42624563520.

The previous prime is 42775458163. The next prime is 42775458227. The reversal of 42775458181 is 18185457724.

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 42775458181 - 2⁷ = 42775458053 is a prime.

It is a super-2 number, since 2×42775458181² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775455181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311200 + ... + 427078.

It is an arithmetic number, because the mean of its divisors is an integer number (5365823400).

Almost surely, 2^42775458181 is an apocalyptic number.

It is an amenable number.

42775458181 is a deficient number, since it is larger than the sum of its proper divisors (151129019).

42775458181 is a wasteful number, since it uses less digits than its factorization.

42775458181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117179.

The product of its digits is 2508800, while the sum is 52.

The spelling of 42775458181 in words is "forty-two billion, seven hundred seventy-five million, four hundred fifty-eight thousand, one hundred eighty-one".