42534220063 has 4 divisors (see below), whose sum is σ = 42559798528. Its totient is φ = 42508641600.

The previous prime is 42534220061. The next prime is 42534220067. The reversal of 42534220063 is 36002243524.

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

It is a cyclic number.

It is not a de Polignac number, because 42534220063 - 2¹ = 42534220061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42534220061) 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, 12786738 + ... + 12790063.

It is an arithmetic number, because the mean of its divisors is an integer number (10639949632).

Almost surely, 2^42534220063 is an apocalyptic number.

42534220063 is a deficient number, since it is larger than the sum of its proper divisors (25578465).

42534220063 is a wasteful number, since it uses less digits than its factorization.

42534220063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578464.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 42534220063 its reverse (36002243524), we get a palindrome (78536463587).

The spelling of 42534220063 in words is "forty-two billion, five hundred thirty-four million, two hundred twenty thousand, sixty-three".