42456839161 has 8 divisors (see below), whose sum is σ = 47190449664. Its totient is φ = 37868878320.

The previous prime is 42456839147. The next prime is 42456839171. The reversal of 42456839161 is 16193865424.

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 42456839161 - 2²³ = 42448450553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42456839171) 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, 36411801 + ... + 36412966.

It is an arithmetic number, because the mean of its divisors is an integer number (5898806208).

Almost surely, 2^42456839161 is an apocalyptic number.

It is an amenable number.

42456839161 is a deficient number, since it is larger than the sum of its proper divisors (4733610503).

42456839161 is a wasteful number, since it uses less digits than its factorization.

42456839161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72824831.

The product of its digits is 1244160, while the sum is 49.

The spelling of 42456839161 in words is "forty-two billion, four hundred fifty-six million, eight hundred thirty-nine thousand, one hundred sixty-one".