5431991824 has 60 divisors (see below), whose sum is σ = 12380485500. Its totient is φ = 2301809664.

The previous prime is 5431991809. The next prime is 5431991843. The reversal of 5431991824 is 4281991345.

It can be written as a sum of positive squares in 2 ways, for example, as 916151824 + 4515840000 = 30268^2 + 67200^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30852 + ... + 108700.

It is an arithmetic number, because the mean of its divisors is an integer number (206341425).

Almost surely, 2^5431991824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5431991824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6190242750).

5431991824 is an abundant number, since it is smaller than the sum of its proper divisors (6948493676).

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

5431991824 is a wasteful number, since it uses less digits than its factorization.

5431991824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77960 (or 77947 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The square root of 5431991824 is about 73702.0476242011. The cubic root of 5431991824 is about 1757.8684404875.

The spelling of 5431991824 in words is "five billion, four hundred thirty-one million, nine hundred ninety-one thousand, eight hundred twenty-four".