5431643231 has 8 divisors (see below), whose sum is σ = 6222410880. Its totient is φ = 4644580248.

The previous prime is 5431643213. The next prime is 5431643233. The reversal of 5431643231 is 1323461345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-5431643231 is a prime.

It is a super-2 number, since 2×5431643231² = 59005496377736238722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431643233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923021 + ... + 928886.

It is an arithmetic number, because the mean of its divisors is an integer number (777801360).

Almost surely, 2^5431643231 is an apocalyptic number.

5431643231 is a deficient number, since it is larger than the sum of its proper divisors (790767649).

5431643231 is a wasteful number, since it uses less digits than its factorization.

5431643231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852333.

The product of its digits is 25920, while the sum is 32.

The square root of 5431643231 is about 73699.6827062369. The cubic root of 5431643231 is about 1757.8308364948.

The spelling of 5431643231 in words is "five billion, four hundred thirty-one million, six hundred forty-three thousand, two hundred thirty-one".