5431296931 has 4 divisors (see below), whose sum is σ = 5432112000. Its totient is φ = 5430481864.

The previous prime is 5431296919. The next prime is 5431296977. The reversal of 5431296931 is 1396921345.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5431296931 - 2³¹ = 3283813283 is a prime.

It is a super-2 number, since 2×5431296931² = 58997972705380037522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5431296991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397456 + ... + 410893.

It is an arithmetic number, because the mean of its divisors is an integer number (1358028000).

Almost surely, 2^5431296931 is an apocalyptic number.

5431296931 is a deficient number, since it is larger than the sum of its proper divisors (815069).

5431296931 is an equidigital number, since it uses as much as digits as its factorization.

5431296931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815068.

The product of its digits is 174960, while the sum is 43.

The square root of 5431296931 is about 73697.3332692574. Note that the first 3 decimals coincide. The cubic root of 5431296931 is about 1757.7934782633.

The spelling of 5431296931 in words is "five billion, four hundred thirty-one million, two hundred ninety-six thousand, nine hundred thirty-one".