42144144551 has 2 divisors, whose sum is σ = 42144144552. Its totient is φ = 42144144550.

The previous prime is 42144144547. The next prime is 42144144563. The reversal of 42144144551 is 15544144124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42144144551 - 2² = 42144144547 is a prime.

It is a super-2 number, since 2×42144144551² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42144144451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072072275 + 21072072276.

It is an arithmetic number, because the mean of its divisors is an integer number (21072072276).

Almost surely, 2^42144144551 is an apocalyptic number.

42144144551 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144144551 is an equidigital number, since it uses as much as digits as its factorization.

42144144551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51200, while the sum is 35.

Adding to 42144144551 its reverse (15544144124), we get a palindrome (57688288675).

The spelling of 42144144551 in words is "forty-two billion, one hundred forty-four million, one hundred forty-four thousand, five hundred fifty-one".