4257743265409 has 4 divisors (see below), whose sum is σ = 4481835016240. Its totient is φ = 4033651514580.

The previous prime is 4257743265401. The next prime is 4257743265437. The reversal of 4257743265409 is 9045623477524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4257743265409 - 2³ = 4257743265401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4257743265401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112045875387 + ... + 112045875424.

It is an arithmetic number, because the mean of its divisors is an integer number (1120458754060).

Almost surely, 2^{4257743265409} is an apocalyptic number.

It is an amenable number.

4257743265409 is a deficient number, since it is larger than the sum of its proper divisors (224091750831).

4257743265409 is a wasteful number, since it uses less digits than its factorization.

4257743265409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224091750830.

The product of its (nonzero) digits is 50803200, while the sum is 58.

The spelling of 4257743265409 in words is "four trillion, two hundred fifty-seven billion, seven hundred forty-three million, two hundred sixty-five thousand, four hundred nine".