42144400063 has 4 divisors (see below), whose sum is σ = 42250557640. Its totient is φ = 42038242488.

The previous prime is 42144400057. The next prime is 42144400091. The reversal of 42144400063 is 36000444124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42144400063 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 (42144400093) 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, 53078193 + ... + 53078986.

It is an arithmetic number, because the mean of its divisors is an integer number (10562639410).

Almost surely, 2^42144400063 is an apocalyptic number.

42144400063 is a deficient number, since it is larger than the sum of its proper divisors (106157577).

42144400063 is a wasteful number, since it uses less digits than its factorization.

42144400063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106157576.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42144400063 its reverse (36000444124), we get a palindrome (78144844187).

The spelling of 42144400063 in words is "forty-two billion, one hundred forty-four million, four hundred thousand, sixty-three".