257323046441 has 4 divisors (see below), whose sum is σ = 257333146884. Its totient is φ = 257312946000.

The previous prime is 257323046429. The next prime is 257323046459. The reversal of 257323046441 is 144640323752.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 213239844841 + 44083201600 = 461779^2 + 209960^2 .

It is a cyclic number.

It is not a de Polignac number, because 257323046441 - 2¹⁰ = 257323045417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257323046401) 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, 5011910 + ... + 5062991.

It is an arithmetic number, because the mean of its divisors is an integer number (64333286721).

Almost surely, 2^257323046441 is an apocalyptic number.

It is an amenable number.

257323046441 is a deficient number, since it is larger than the sum of its proper divisors (10100443).

257323046441 is a wasteful number, since it uses less digits than its factorization.

257323046441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100442.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 257323046441 in words is "two hundred fifty-seven billion, three hundred twenty-three million, forty-six thousand, four hundred forty-one".