256247541212244 has 96 divisors (see below), whose sum is σ = 625948501893120. Its totient is φ = 81488818454400.

The previous prime is 256247541212231. The next prime is 256247541212251. The reversal of 256247541212244 is 442212145742652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292286502 + ... + 293161890.

It is an arithmetic number, because the mean of its divisors is an integer number (6520296894720).

Almost surely, 2^{256247541212244} is an apocalyptic number.

It is an amenable number.

256247541212244 is an abundant number, since it is smaller than the sum of its proper divisors (369700960680876).

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

256247541212244 is a wasteful number, since it uses less digits than its factorization.

256247541212244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886581 (or 886579 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 51.

Adding to 256247541212244 its reverse (442212145742652), we get a palindrome (698459686954896).

The spelling of 256247541212244 in words is "two hundred fifty-six trillion, two hundred forty-seven billion, five hundred forty-one million, two hundred twelve thousand, two hundred forty-four".