5731661431 has 2 divisors, whose sum is σ = 5731661432. Its totient is φ = 5731661430.

The previous prime is 5731661323. The next prime is 5731661459. The reversal of 5731661431 is 1341661375.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5731661431 - 2⁷ = 5731661303 is a prime.

It is a super-2 number, since 2×5731661431² = 65703885519225935522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5731661531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2865830715 + 2865830716.

It is an arithmetic number, because the mean of its divisors is an integer number (2865830716).

Almost surely, 2^5731661431 is an apocalyptic number.

5731661431 is a deficient number, since it is larger than the sum of its proper divisors (1).

5731661431 is an equidigital number, since it uses as much as digits as its factorization.

5731661431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 37.

The square root of 5731661431 is about 75707.7369295900. The cubic root of 5731661431 is about 1789.6173282862.

The spelling of 5731661431 in words is "five billion, seven hundred thirty-one million, six hundred sixty-one thousand, four hundred thirty-one".