5431172797 has 2 divisors, whose sum is σ = 5431172798. Its totient is φ = 5431172796.

The previous prime is 5431172657. The next prime is 5431172821. The reversal of 5431172797 is 7972711345.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5174500356 + 256672441 = 71934^2 + 16021^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5431172797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5431172897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2715586398 + 2715586399.

It is an arithmetic number, because the mean of its divisors is an integer number (2715586399).

Almost surely, 2^5431172797 is an apocalyptic number.

It is an amenable number.

5431172797 is a deficient number, since it is larger than the sum of its proper divisors (1).

5431172797 is an equidigital number, since it uses as much as digits as its factorization.

5431172797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 370440, while the sum is 46.

The square root of 5431172797 is about 73696.4910765770. The cubic root of 5431172797 is about 1757.7800865203.

The spelling of 5431172797 in words is "five billion, four hundred thirty-one million, one hundred seventy-two thousand, seven hundred ninety-seven".