5431544111 has 24 divisors (see below), whose sum is σ = 6370050960. Its totient is φ = 4617648000.

The previous prime is 5431544033. The next prime is 5431544119. The reversal of 5431544111 is 1114451345.

It is a de Polignac number, because none of the positive numbers 2^k-5431544111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431544119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5329760 + ... + 5330778.

It is an arithmetic number, because the mean of its divisors is an integer number (265418790).

Almost surely, 2^5431544111 is an apocalyptic number.

5431544111 is a deficient number, since it is larger than the sum of its proper divisors (938506849).

5431544111 is a wasteful number, since it uses less digits than its factorization.

5431544111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815 (or 1808 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 5431544111 is about 73699.0102443717. The cubic root of 5431544111 is about 1757.8201437668.

Adding to 5431544111 its reverse (1114451345), we get a palindrome (6545995456).

The spelling of 5431544111 in words is "five billion, four hundred thirty-one million, five hundred forty-four thousand, one hundred eleven".