4231689257 has 2 divisors, whose sum is σ = 4231689258. Its totient is φ = 4231689256.

The previous prime is 4231689239. The next prime is 4231689271. The reversal of 4231689257 is 7529861324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4085255056 + 146434201 = 63916^2 + 12101^2 .

It is a cyclic number.

It is not a de Polignac number, because 4231689257 - 2¹⁸ = 4231427113 is a prime.

It is a super-3 number, since 3×4231689257³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4231689157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2115844628 + 2115844629.

It is an arithmetic number, because the mean of its divisors is an integer number (2115844629).

Almost surely, 2^4231689257 is an apocalyptic number.

It is an amenable number.

4231689257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4231689257 is an equidigital number, since it uses as much as digits as its factorization.

4231689257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 4231689257 is about 65051.4354722477. The cubic root of 4231689257 is about 1617.4762890776.

The spelling of 4231689257 in words is "four billion, two hundred thirty-one million, six hundred eighty-nine thousand, two hundred fifty-seven".