42418789673 has 8 divisors (see below), whose sum is σ = 45685101000. Its totient is φ = 39152953728.

The previous prime is 42418789661. The next prime is 42418789729. The reversal of 42418789673 is 37698781424.

42418789673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1464363289 + 40954426384 = 38267^2 + 202372^2 .

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 42418789673 - 2⁸ = 42418789417 is a prime.

It is a super-2 number, since 2×42418789673² (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 (42418789073) 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, 78653 + ... + 301701.

It is an arithmetic number, because the mean of its divisors is an integer number (5710637625).

Almost surely, 2^42418789673 is an apocalyptic number.

It is an amenable number.

42418789673 is a deficient number, since it is larger than the sum of its proper divisors (3266311327).

42418789673 is a wasteful number, since it uses less digits than its factorization.

42418789673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237691.

The product of its digits is 16257024, while the sum is 59.

The spelling of 42418789673 in words is "forty-two billion, four hundred eighteen million, seven hundred eighty-nine thousand, six hundred seventy-three".