5431155012 has 36 divisors (see below), whose sum is σ = 13864690476. Its totient is φ = 1792459200.

The previous prime is 5431154987. The next prime is 5431155013. The reversal of 5431155012 is 2105511345.

5431155012 is a `hidden beast` number, since 5 + 43 + 115 + 501 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3757199616 + 1673955396 = 61296^2 + 40914^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (5431155013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 743223 + ... + 750494.

It is an arithmetic number, because the mean of its divisors is an integer number (385130291).

Almost surely, 2^5431155012 is an apocalyptic number.

It is an amenable number.

5431155012 is an abundant number, since it is smaller than the sum of its proper divisors (8433535464).

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

5431155012 is a wasteful number, since it uses less digits than its factorization.

5431155012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493828 (or 1493823 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 5431155012 is about 73696.3704126601. The cubic root of 5431155012 is about 1757.7781678339.

Adding to 5431155012 its reverse (2105511345), we get a palindrome (7536666357).

The spelling of 5431155012 in words is "five billion, four hundred thirty-one million, one hundred fifty-five thousand, twelve".