255780344567 has 8 divisors (see below), whose sum is σ = 288034171392. Its totient is φ = 225026695800.

The previous prime is 255780344551. The next prime is 255780344569. The reversal of 255780344567 is 765443087552.

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 255780344567 - 2⁴ = 255780344551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255780344569) 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, 375044153 + ... + 375044834.

It is an arithmetic number, because the mean of its divisors is an integer number (36004271424).

Almost surely, 2^255780344567 is an apocalyptic number.

255780344567 is a deficient number, since it is larger than the sum of its proper divisors (32253826825).

255780344567 is a wasteful number, since it uses less digits than its factorization.

255780344567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750089029.

The product of its (nonzero) digits is 28224000, while the sum is 56.

The spelling of 255780344567 in words is "two hundred fifty-five billion, seven hundred eighty million, three hundred forty-four thousand, five hundred sixty-seven".