544541550431 has 4 divisors (see below), whose sum is σ = 546819967200. Its totient is φ = 542263133664.

The previous prime is 544541550403. The next prime is 544541550439. The reversal of 544541550431 is 134055145445.

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-544541550431 is a prime.

It is a super-2 number, since 2×544541550431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544541550439) 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, 1139208026 + ... + 1139208503.

It is an arithmetic number, because the mean of its divisors is an integer number (136704991800).

Almost surely, 2^544541550431 is an apocalyptic number.

544541550431 is a deficient number, since it is larger than the sum of its proper divisors (2278416769).

544541550431 is a wasteful number, since it uses less digits than its factorization.

544541550431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278416768.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 544541550431 its reverse (134055145445), we get a palindrome (678596695876).

The spelling of 544541550431 in words is "five hundred forty-four billion, five hundred forty-one million, five hundred fifty thousand, four hundred thirty-one".