42163608189061 has 4 divisors (see below), whose sum is σ = 42163650791212. Its totient is φ = 42163565586912.

The previous prime is 42163608189029. The next prime is 42163608189067. The reversal of 42163608189061 is 16098180636124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8771459572225 + 33392148616836 = 2961665^2 + 5778594^2 .

It is a cyclic number.

It is not a de Polignac number, because 42163608189061 - 2⁵ = 42163608189029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42163608188993 and 42163608189011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42163608189067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19780326 + ... + 21807991.

It is an arithmetic number, because the mean of its divisors is an integer number (10540912697803).

Almost surely, 2^{42163608189061} is an apocalyptic number.

It is an amenable number.

42163608189061 is a deficient number, since it is larger than the sum of its proper divisors (42602151).

42163608189061 is a wasteful number, since it uses less digits than its factorization.

42163608189061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42602150.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 42163608189061 in words is "forty-two trillion, one hundred sixty-three billion, six hundred eight million, one hundred eighty-nine thousand, sixty-one".