5431111040 has 64 divisors (see below), whose sum is σ = 13747527360. Its totient is φ = 2044649472.

The previous prime is 5431111009. The next prime is 5431111109. The reversal of 5431111040 is 401111345.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238712 + ... + 260471.

It is an arithmetic number, because the mean of its divisors is an integer number (214805115).

Almost surely, 2^5431111040 is an apocalyptic number.

It is an amenable number.

5431111040 is an abundant number, since it is smaller than the sum of its proper divisors (8316416320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5431111040 is a wasteful number, since it uses less digits than its factorization.

5431111040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499219 (or 499207 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5431111040 is about 73696.0720798605. The cubic root of 5431111040 is about 1757.7734240160.

Adding to 5431111040 its reverse (401111345), we get a palindrome (5832222385).

The spelling of 5431111040 in words is "five billion, four hundred thirty-one million, one hundred eleven thousand, forty".