544550642431 has 2 divisors, whose sum is σ = 544550642432. Its totient is φ = 544550642430.

The previous prime is 544550642429. The next prime is 544550642477. The reversal of 544550642431 is 134246055445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 544550642431 - 2¹ = 544550642429 is a prime.

It is a super-2 number, since 2×544550642431² (a number of 24 digits) contains 22 as substring.

Together with 544550642429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544550643431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272275321215 + 272275321216.

It is an arithmetic number, because the mean of its divisors is an integer number (272275321216).

Almost surely, 2^544550642431 is an apocalyptic number.

544550642431 is a deficient number, since it is larger than the sum of its proper divisors (1).

544550642431 is an equidigital number, since it uses as much as digits as its factorization.

544550642431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152000, while the sum is 43.

Adding to 544550642431 its reverse (134246055445), we get a palindrome (678796697876).

The spelling of 544550642431 in words is "five hundred forty-four billion, five hundred fifty million, six hundred forty-two thousand, four hundred thirty-one".