256510041242712 has 16 divisors (see below), whose sum is σ = 641275103106840. Its totient is φ = 85503347080896.

The previous prime is 256510041242621. The next prime is 256510041242717. The reversal of 256510041242712 is 217242140015652.

It is a super-2 number, since 2×256510041242712² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256510041242717) 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, 5343959192533 + ... + 5343959192580.

Almost surely, 2^{256510041242712} is an apocalyptic number.

It is an amenable number.

256510041242712 is an abundant number, since it is smaller than the sum of its proper divisors (384765061864128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256510041242712 is a wasteful number, since it uses less digits than its factorization.

256510041242712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687918385122 (or 10687918385118 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 256510041242712 in words is "two hundred fifty-six trillion, five hundred ten billion, forty-one million, two hundred forty-two thousand, seven hundred twelve".