42237908161 has 8 divisors (see below), whose sum is σ = 44808340104. Its totient is φ = 39677015040.

The previous prime is 42237908137. The next prime is 42237908189. The reversal of 42237908161 is 16180973224.

It can be written as a sum of positive squares in 4 ways, for example, as 5075707536 + 37162200625 = 71244^2 + 192775^2 .

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 42237908161 - 2³¹ = 40090424513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42237908131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2375580 + ... + 2393293.

It is an arithmetic number, because the mean of its divisors is an integer number (5601042513).

Almost surely, 2^42237908161 is an apocalyptic number.

It is an amenable number.

42237908161 is a deficient number, since it is larger than the sum of its proper divisors (2570431943).

42237908161 is a wasteful number, since it uses less digits than its factorization.

42237908161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4769411.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 42237908161 in words is "forty-two billion, two hundred thirty-seven million, nine hundred eight thousand, one hundred sixty-one".