4257641431 has 4 divisors (see below), whose sum is σ = 4356656392. Its totient is φ = 4158626472.

The previous prime is 4257641419. The next prime is 4257641447. The reversal of 4257641431 is 1341467524.

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 4257641431 - 2⁷ = 4257641303 is a prime.

It is a super-2 number, since 2×4257641431² = 36255021109935455522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257641411) 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, 49507416 + ... + 49507501.

It is an arithmetic number, because the mean of its divisors is an integer number (1089164098).

Almost surely, 2^4257641431 is an apocalyptic number.

4257641431 is a deficient number, since it is larger than the sum of its proper divisors (99014961).

4257641431 is an equidigital number, since it uses as much as digits as its factorization.

4257641431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99014960.

The product of its digits is 80640, while the sum is 37.

The square root of 4257641431 is about 65250.6048324458. The cubic root of 4257641431 is about 1620.7761142985.

The spelling of 4257641431 in words is "four billion, two hundred fifty-seven million, six hundred forty-one thousand, four hundred thirty-one".