42810657257 has 8 divisors (see below), whose sum is σ = 43268385600. Its totient is φ = 42355357744.

The previous prime is 42810657217. The next prime is 42810657277. The reversal of 42810657257 is 75275601824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42810657257 - 2¹² = 42810653161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42810657217) 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 7 ways as a sum of consecutive naturals, for example, 571757 + ... + 642282.

It is an arithmetic number, because the mean of its divisors is an integer number (5408548200).

Almost surely, 2^42810657257 is an apocalyptic number.

It is an amenable number.

42810657257 is a deficient number, since it is larger than the sum of its proper divisors (457728343).

42810657257 is a wasteful number, since it uses less digits than its factorization.

42810657257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214415.

The product of its (nonzero) digits is 940800, while the sum is 47.

The spelling of 42810657257 in words is "forty-two billion, eight hundred ten million, six hundred fifty-seven thousand, two hundred fifty-seven".